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    Safety & Conical Spring Washers

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    These are used for locking a device and reducing the vibration. They reduce loosening by preventing unscrewing rotation of the fastening device; locking washers are usually also spring washers.

    Washers are available in a wide range such as spring washers, star washers, multi-tooth washers, disc spring washers, wave washers, taper washers, safety washers etc.

    Serrated Safety Washers Type S – Schnorr Type  

    The Safety Washers are of trapezoidal cross section and serrated on both sides. The security is achieved through friction and mechanical locking.
    Advantages
    • The cross section ensures locking effect at the outside diameter.
    • Due to the closed ring form, high degree of pretensioning is achieved.
    • Sliding surfaces allow tightening with damaging the mating surfaces.
    • High resistance to vibration due to positive locking of the serrations
    • Suitable for a wide range of screw/bolt heads minimizing stocks.
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    Disc and Conical Spring Washers

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    These are used for locking a device and reducing the vibration. They reduce loosening by preventing unscrewing rotation of the fastening device; locking washers are usually also spring washers.

    Washers are available in a wide range such as spring washers, star washers, multi-tooth washers, disc spring washers, wave washers, taper washers, safety washers etc.

    Conical Spring Washers

    DIN 6796

    A Conical spring washer designed to help prevent loosening of bolted joints under vibration. This type, manufactured to DIN 6796 has an inherent conical shape. It is also known as a Belleville washer, disc spring, coned-disc spring and cupped disc washer.

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    Star and Tooth Washers

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    The main purpose of toothed lock washers is to permit the flow of electric current between components coated by varnish, anti-corrosive agents or similar materials. The bent ends of the washers piercing the coating when such components are joined. For such applications, the effectiveness of toothed lock washers shall be verified in accordance with the relevant DIN VDE Standards.

    These are also used for locking a device and reducing the vibration. They reduce loosening by preventing unscrewing rotation of the fastening device; locking washers are usually also spring washers.

    Washers are available in a wide range such as spring washers, star washers, multi-tooth washers, disc spring washers, wave washers, taper washers, safety washers etc.

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    Spring Washers

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    Pre Applied Patch Screws

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    Nylon patch is a pre-applied thread locking coating (typically Nylon), which is fused to internal or external threads of a screw. This  patch is dry to the touch and ready for use right out of the box.

    Convenience and Reliability:

    • Fasteners with pre-applied threadlock are ready for assembly
    • Increases productivity on assembly lines with precise thread coverage every time
    • 4 years of shelf life under proper storage conditions
    • Dry-to-touch, non-tacky finish, non-toxic, and assembler-friendly
    • Suitable for temperatures ranging from -58°F to 300°F (-50°C to 150°C)
    • Ideal for automated assembly, replacing washer and manual dispensing on production line.

    Advantage of a pre applied patch over using thread locking adhesives during assembly.

    Perhaps the biggest advantage of preapplying thread-lockers is simply that engineers can be certain the adhesive will actually be on the fastener, in the correct amount and in the correct location. When line personnel apply liquid adhesives during assembly, the process is prone to error. The adhesive may not get dispensed on some fasteners, or it might not be applied in the right spot.

    Similarly, with preapplied thread-lockers, engineers can be sure their torque specifications will be met, because the amount of adhesive applied to each fastener will be carefully controlled.

    Lastly, preapplying a thread-locker saves assemblers time and money. Liquid adhesives often need a primer to stick to the metal surface of a fastener. The preapplication process eliminates this step. Moreover, every drop of liquid adhesive costs money-and not just for the material itself. Assemblers also need to factor in the cost of waste, dispensing equipment, and cleaning and maintenance.

    Nylon patch screw is commonly known as a prevailing torque type self-locking fastener.

    Available readily in many screw types and sizes.

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    Circlips

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    Circlips are used to prevent lateral movement. They are used as retaining rings on bearing assemblies and are manufactured using semi-flexible metal ring. These products are in a shape of a circle with a clip and are open from one end.

    Constructed as curved beams of uniform strength, the radial width is reduced towards the free ends so that a constantly round shape is maintained throughout continuous use. This form of circlip often used in assemblies subjected to strong centrifugal forces, is also secure against high rotational speeds. Lugs with holes are provided for rapid fitting or removal with circlip pliers.

    Circlips now available in High Strength and Corrosion Resistance Aerospace Grade.

    SS 1.4532-Aero Grade provides exceptional strength combined with Corrosion resistance that is essential for the Aerospace industry.

    The following types are available:

    External Circlips – DIN 471

    Circlips are used to prevent lateral movement. They are used as retaining rings on bearing assemblies and are manufactured using semi-flexible metal ring. These products are in a shape of a circle with a clip and are open from one end.

    The most common form of axially fitted circlips for shafts with grooves.

    Constructed as curved beams of uniform strength, the radial width is reduced towards the free ends so that a constantly round shape is maintained throughout continuous use. This form of circlip often used in assemblies subjected to strong centrifugal forces; is secure against high rotational speeds. Lugs with holes are provided for rapid fitting or removal with circlip pliers.

    Materials: Carbon Spring Steel – Finish: Phosphate and Oil.

    Stainless Steel – 1.4122, 1.4543-Aero

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    Hose Clamps

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    Typically fitted with a worm drive, hose clips are suited to most day-to-day requirements for connecting hose.

    Industry sectors including automotive, industrial, agricultural, construction and the DIY market make widespread use of hose clips for both pneumatic and hydraulic applications.

    The corrosion resistance of A2 (304) grade clips makes them ideal for use in the marine, oil, gas and the food industry as well as the agricultural, hardware and industrial markets.
    Our A4 (316) range offer the highest level of corrosion resistance for use within ship building and maintenance, plus food and chemical industries.

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    Thread-Locker Adhesives Loctite

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    Thread-Locker Adhesives Loctite

    A threadlocker is a single component liquid or semi-solid adhesive. They cure at room temperature to a hard solid thermoset plastic when applied between steel, aluminium, brass and most other metal surfaces. They cure in the absence of air. The adhesive completely fills the gaps between mating threads to lock threads and joints.

    Available Strengths

    • Low Strength (Purple): Ideal for fasteners <1⁄4″ (6 mm). Easy disassembly using hand tools
    • Medium Strength (Blue): Designed to be removable with standard hand tools on 1⁄4″ to 3⁄4″ fasteners
    • High Strength (Red): Designed to deliver high strength on 1⁄4″ to 3⁄4″ (6 mm to 22 mm) fasteners. For removal, it may require localized heat (>550°F/260°C), hand tools, and disassembly while hot

    LOCTITE® 222 – Purple

    This is a low-strength threadlocker that allows the adjustment of screws including countersunk head screws and set screws. Good on low-strength metals which could fracture during disassembly, e.g. aluminum or brass. The product works on all metals, including passive substrates such as stainless steel, aluminum and plated surfaces. t is proven to be tolerant of minor contamination due to industrial oils, e.g. motor oils, corrosion prevention oils and cutting fluids.

    • Ideal for low-strength threadlocking of adjusting screws, countersunk head screws and set screws
    • Prevents loosening on vibrating assemblies, e.g. pumps, gear boxes or presses
    • Permits disassembly with hand tools
    • Especially suited to small thread sizes

    LOCTITE® 242 – Blue 

    This is a medium strength, medium viscosity, methacrylate-based threadlocking adhesive offering general purpose qualities. The product provides quick fixture times on steel, brass and stainless steel of 5, 15 and 20 min respectively. LOCTITE 242 is thixotropic to prevent migration after application and is intended for fasteners that require normal disassembly with standard hand tools.

    • Medium strength
    • Medium viscosity
    • Quick fixture time
    • Thixotropic to reduce adhesive migration

    USAGE NOTES

    A PIECE OF ADVICE ON USING LOCTITE

    Watch out with the use of this adhesive in a blind hole: applying Loctite to a bolt may seal off its threads, which means the air in the blind hole cannot escape when you screw the bolt in. The compressed air in the hole may distort your reading of the amount of torque you have applied (e.g. 20 Nm while in reality the number is lower). That’s why it is advised to  apply the glue towards the bottom of the blind hole rather than to the bolt itself. Naturally, you should make sure that the bolt actually comes into contact with the glue.

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    Wedge-Lock Washers

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    Bolted connections tend to work themselves loose under certain operating conditions. Vibrations cause particular problems as they can overpower the “self-locking effect” of bolted connections. This can lead to functional failure or even lead to the connection coming apart. As it’s not always possible to know what forces are acting on the structure, and as constructional measures cannot be implemented everywhere, securing elements are often used.
    One of the few effective securing technologies available is the HEICO-LOCK® wedge locking system, the effectiveness of which has been demonstrated by the latest experimental standards (including DIN 65151, DIN 25201-4, NASM 1312-7).

    FUNCTIONAL PRINCIPLE

    Advantages

    Certified system for securing bolts, works at low and high preload levels.
    Particularly suitable for dynamic loads – including when using lubricants.
    Can be re-used.
    Very easy to install and remove (wedge lock washers are supplied as a pre-assembled pair)
    Suitable for high-tensile bolts of 8.8, 10.9 and 12.9 and their respective nuts.
    Available in steel or stainless steel with narrow or wide bearing surfaces – other materials are available upon request.
    Available from M3 – M76 and ¼” – 3” – customised sizes upon request

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    Unthreaded Spacers

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    Spacers are fasteners used to connect, separate, or position parts in assemblies.

    The hollow body of a spacer is designed to allow the shaft of a screw to pass completely through it before entering the surface material. This forces a gap to be kept between the screw head and the material or component below, while still allowing the fastener to be properly torqued.

    They can have a hex or round shape, and are not threaded. They are made of steel, stainless steel, nylon, or aluminum and can have a male or female body style.

    They are generally installed over the top of screws to space out or stack circuit boards or paneling. Spacers can be stacked to cover longer screws if needed. Because they are un-threaded and placed over the top of the screw, there is no torque involved. The spacer can spin or twist without affecting the application in which they are used.  Also used to calibrate the height of a sensor or switch, or provide heat or electrical isolation.

    Heavier Stainless Steel Spacers are commonly use to install lightweight signs or to separate glass tops on a table.

    NYLON SPACERS

    Nylon is a lightweight, non-conductive material resistant to impact, wear and abrasion. It is ideal for electrical applications or where corrosion is a concern.

    These provide sturdy support, alignment and spacing to a variety of applications such as circuit board assemblies, panels and doors.

    In the world of electronic components and electronic hardware, these standoffs are typically used to space circuit boards, panels, doors or gears.

    A very useful addition to Drone design.

    These offer a smooth surface finish that will not erode the insulation of wires that rub against the nylon spacers.

    It is also incredibly lightweight for its overall strength, although it can be prone to shearing in high torque installations. While nylon is highly chemical resistant, it is less suitable for use in damp or humid environments, due to its tendency to absorb moisture over time.

    Available in Round Body and Hexagonal Body shapes.

    Round Body Spacers

    Female unthreaded round circuit board spacers do not have threads and resemble a plain, cylindrical tube.

    These Round Unthreaded Spacers can be used for separation and insulation as well.

    Available in White or clear as a standard finish.

    Hex Body Spacers

    Female unthreaded hex spacers do not have threads and resemble a plain, hexagonal tube.

    The Hexagonal body provides a higher strength and ability to place better on the assembly.

    These are available in Black Nylon and provide a sturdy assembly.

    SS Round Spacers

    A new addition to our range that provides additional options to various product assemblies.

    Stainless steel spacers provide high-strength and corrosion resistance, making it a versatile spacer material option.

    Made from AISI-303, these are available from 2.5mm hole diameter onward.

    These are also useful as sleeves in certain applications that require strength and durability.

    Stainless steel tube spacers are often preferred for visible mounting solutions as they remain looking pristine for extended periods.

    Aluminium Round Spacers

    Another new addition to our range that provides additional options to various product assemblies.

    Aluminium spacers are light-weight and corrosion resistant, making it a versatile spacer material option.

    Made from Aluminium 6061, these are available from 2mm hole diameter onward.

    Aluminium tube spacers are especially suitable for Aerospace applications.

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    Threaded Standoffs and Spacers

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    Spacers and Standoffs are two common types of positioning electronic hardware. Look inside an assembled circuit board, and you will be greeted by a bevy of Standoffs and Spacers, because in the world of Electronic Hardware, they are the standard for connecting and mounting circuit boards, panels, doors, and gears providing sturdy support and alignment.

    Both are commonly used to properly position parts within an assembly, to reduce component contact, to elevate stacked sections, to ensure enough room for heat to dissipate, and to separate or create space between two objects. These guys are workhorses!

    Threaded Standoffs and Spacers

    Standoffs are threaded hollow Hex or Round fasteners that separate and position components while also fastening them together. The standoff hardware screws onto bolts or screws by hand. Also called standoff mounts, these fasteners are commonly used to raise one assembly above the other, such as elevating a circuit board above a surface. They can also be used to extend thread options or as an adapter to join male-threaded parts to female-threaded parts (and vice versa).

    Types:

    1) Through Internal Threaded Standoffs.
    These are Female-Female type also known as hex spacers with internal thread or F-F Spacers.

     

     

    2) Male-Female (E.T.) Standoffs
    These are Male-Female type also known as ET spacers or M-F Spacers.

    Selection Guide

    When designing and choosing a Standoff for your next application, it is easiest to think of standoffs as 3 separate sections; the two threaded ends and the main body.  The below guide will help you think through those 3 sections and provide the common information needed for finding the right standoff.

    Step 1 – Thread Type

    Standoffs are divided into a few different styles and named after the type of threads on each end.

    Female-Female Standoffs

    These are also referred to as a Threaded Spacer and come with female threads on both ends of the part. This allows for a screw or male standoff to be installed on either side.

    In shorter lengths, standoffs will be threaded through the entire part, where longer standoffs are threaded to a minimum thread depth.

    Male-Female Standoffs

    These have one end with a male thread and the other end has a female thread.

    These are excellent for use when stacking circuit boards as each male thread can be installed into the mating part’s female thread.

    This quickly reduces the number of fasteners needed in the assembly while also reducing installation time.

    Male-Male Standoffs

    This has male threads on both ends and are used to connect 2 female threaded components.

    These are also commonly utilized as thread adapters to convert a female thread to a male thread.

    Male ends can be the same or a different thread for a wider range of applications.

    Step 2 – Thread Size

    Standoffs are readily available in all common thread sizes, in both inch and metric series. While most commonly found with each end having the same size thread, different thread sizes can be manufactured on specific order.

    Step 3 – Body Length

    The third part of the standoff once the thread sizes have been determined is the body.

    As standoffs are commonly used to separate 2 components, the body of the standoff is what will separate the components.

    As each application will require a unique body length, all standoffs come in a wide range of length options.

    Parts are machined to a tolerance for a secure and consistent fit.

    Custom lengths and tolerances can be manufactured on special order.

    Through Internal Threaded Hex Standoff F-F

    A hexagonal, mechanical device which has a partial or complete internal thread, used to hold two components at a given distance from each other.

    Advantages  – Standoffs are usually chosen over spacers when longer sizes are required. Hex standoffs can be installed with a nut-setter or other wrenching device.

    Suitable for using with screws at both ends providing a clean finish.

    Materials

    Brass

    Brass is used in making high-quality standoffs. It is conductive, resists corrosion, and is non-magnetic. It is costlier and heavier than Nylon and is usually plated nickel

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    Pilot Pins

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    Self-Clinching fasteners provide strong load bearing male or female threads in thin steel and aluminium panels.

    Installation is neat and easy.

    Simply locate the fastener into a pre-prepared hole and apply a parallel squeezing force to embed the fastener into the panel.

    Self-Clinching fasteners work by utilizing a special clinch feature.

    When the part is pressed into the hole, the parent material cold-flows into the clinch feature, effectively locking the fastener into the panel, providing excellent torque-out and push-out performance.

    Self-Clinching fasteners require a parallel squeezing force to be applied for correct installation.

    Equally important is the length of time the force is applied. Sufficient time must be allowed for the cold-flow clinching process to work (this is often referred to as the dwell time when installing on a hydraulic press).

    Pilot Pins – JC-TPS Pins

    Pilot Pins are a type of locating pins that resemble threadless studs. These pilot pins have a rounded profile with a tapered tip.

    They assist in aligning components before fastening, ensuring accurate installation.

    SPECIAL NOTE FOR INSTALLING INTO STAINLESS STEEL SHEETS
    One of the very basics of self-clinching is that the fastener must be harder than the host sheet. Only then will the fastener perform as intended.

    This is particularly challenging when installing fasteners into stainless steel sheet metal.
    If your application requires that the fastener clinches into stainless steel, be sure you use the fasteners specifically designed for this purpose.

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