72 ANSTST 8-12 (6.4 Ø x 22L) Anlock Countersunk ALL Stainless Mega Lock Structural Rivet Grips 4.3-17.5mm

Product Overview & Applications

This 72 ANSTST 8-12 (6.4 Ø x 22L) Anlock Countersunk ALL Stainless Mega Lock Structural Rivet Grips 4.3-17.5mm is a precision-manufactured anlock mega lock structural rivet.

Technical Fastener Characteristics

• Head Style: Countersunk Head
• Product Type: Anlock Mega Lock Structural Rivet

Dimensions & Grip Range

• Body Diameter: 6.4mm (1/4")
• Grip Range: 4.3mm to 17.5mm

Material & Coating

Stainless steel is the standard corrosion-resistant material for fasteners. A2-70 G304 is the most popular grade — aesthetically clean, highly corrosion resistant in most non-marine environments. A4-70 G316 marine grade adds molybdenum for chloride resistance and is the right choice within 300m of the coast, in salt spray, chemical or food-contact installations. Most stainless products are identifiable by stamped head markings: A2, A2-70, 304 or G304 for general grade; A4, A4-70, 316 or G316 for marine.

Magnetism Note: Stainless steels are largely non-magnetic, but it is common for stainless fasteners to show a small degree of magnetism. This is a natural result of the work-hardening process during cold-heading and manufacturing, not a sign of inferior quality.

Maintenance & Corrosion Best Practices

Stainless steel is corrosion-resistant but not corrosion-proof. Surface staining or failure can occur if the material is installed or handled incorrectly. Carbon-steel tools and drills used during installation can shed minute particles onto the stainless surface, which rust and produce a tea-stained appearance. Use stainless-only tools or thoroughly clean the assembly after installation.

For full technical data including grade markings, torque specifications and corrosion-resistance charts, see our Technical PDFs library.

About This Product

Anlock Structural Rivet (Mega Lock) In-Bolt has a multi-grip clamping range used in the automotive industry, truck building, containers, construction work and coach and caravan vehicles

Features / Benefits

• One rivet can be installed into a wide range of material depths

  About This Product

  High shear & tensile strength, making them ideal in critical applications

  About This Product

  Superior holding power (Clamp up)

  About This Product

  Fastens over wide grip range

  About This Product

  Locking feature prevents loosening of mandrel from vibration

  About This Product

  Vibration & weather resistance solution, once installed they will never loosen

  About This Product

  Good watertight performance

  How Rivets Work

  Using a structural rivet tool, the rivet is ‘set’ by drawing the stem through the shell, which causes the body to expand/compress to distort and clamp the material securely. After the desired clamping force is achieved, the stem breaks off at a predetermined position and is discarded. A small portion of the stem remains trapped in the bottom of the shell to ensure the clamping force is retained in the joint. Blind rivets are designed to clamp together specific thicknesses of material. If the grip range is less than it should be (the rivet is too long), excessive material will be left on the blind side and more pulls will be required to break-off the mandrel. If the grip range is too large (rivet is too short), insufficient material may be left on the blind side to secure the joint

  Material Pairing

  As a general rule, the shell material of the rivet should be the same as the material under the head, ie, if aluminium is fastened to steel, use steel rivets. Part of the stem remains in the shell after setting. In the case of steel stems, this part may rust, an undesirable attribute in many circumstances. In these cases, choose a rivet with a stainless or aluminium stem

  Measurements

  Every effort has been made to ensure all measurements on our site are accurate and to the relevant standard, they should only be used as a guide. If you see a problem with our specifications please contact us

  Dimensions

  Our stock is sourced from various suppliers, therefore differences may exist between batches such as head dimensions, stem length, body length, grip range and actual material finish / colour

  Product Photos

  Are of the product but may not be the actual diameter, head size, stem or shell length you may require, always refer to the size in the title and the specifications table prior to ordering

  Updating Our Site

  If you see any problems with any of our specifications or you require additional information please contact us

  Important Notice

  Technical data and specifications were researched and compiled from numerous industry sources for the sole purpose of providing basic information. All material is advisory only and its use by anyone is entirely voluntary. Reliance on it for any purpose by anyone is at the sole risk of that person, and Bolt and Nut Australia is not responsible for any loss, claim or damages arising therefrom. In developing this information, Bolt and Nut Australia has made a determined effort to present it accurately

  Buy With Confidence

  13+ Years experience selling online, > 25,000 stock lines, 200 million pieces ex stock in Brisbane QLD

  Pricing & Delivery

  Includes GST, a Tax Invoice and Free Standard Delivery anywhere in Australia

  Frequently Asked Questions

  What is the tensile strength of this rivet?

  Yield 240 MPa, ultimate tensile 400 MPa. Mild-steel grade for general fastening below working limits.

  What thickness of material can this rivet fasten?

  This rivet's grip range is 4.3mm to 17.5mm — the total combined thickness of the materials you're joining must fall within this range. If the layers add up to less than the minimum, the rivet won't form a proper back-head; if more than the maximum, the mandrel won't pull through to set the joint.