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Rivets · Trade series (Huck Magna-Grip) · Application guide

What Are Huck Magna-Grip Lockbolt Assembly Used For?

Typical applications, the industries that specify huck magna-grip lockbolt assembly, and how to choose the right size, material and finish for the joint.

Huck Magna-Grip Lockbolt Assemblies are used for grip-range lockbolt fastening in vibration-exposed frames and bodywork. They are manufactured to Trade series (Huck Magna-Grip), and selection is driven by the screw size, the fit and tolerance the assembly requires, and the service environment.

Primary duty
Grip-range lockbolt fastening in vibration-exposed frames and bodywork
Governing standard
Trade series (Huck Magna-Grip)
Screw size range
14 to 516
Category
Rivets

Application notes are general engineering guidance. Verify the property class and any approval requirement against your own design calculation.

What Are Huck Magna-Grip Lockbolt Assembly Used For? application image

Application guide for Huck Magna-Grip Lockbolt Assemblies to Trade series (Huck Magna-Grip). The core duty of the type is grip-range lockbolt fastening in vibration-exposed frames and bodywork. The typical industries, the how-to-specify checklist, assembly practice and the exclusion cases are set out below. Stocked across roughly 14 to 516, they cover heavy and structural work.

Typical Applications for Huck Magna-Grip Lockbolt Assembly

The most common settings where these are specified:

  • Truck and trailer assembly: grip-range lockbolts in chassis and body structures.
  • Agricultural equipment: permanent frame joints exposed to field vibration.
  • Rail and transit: one-side fastening of structural skins and support members.
  • Off-highway equipment: button-head joints exposed to shock and cyclic service.

How to Specify Huck Magna-Grip Lockbolt Assembly for Your Application

  • Size: Select on screw size, and confirm it against the mating feature in the assembly. This product spans 14–516; check the full table below for the exact dimensions of each size.
  • Material: Choose the material and finish for the service environment — plated steel for general use, stainless for corrosion resistance.
  • Environment: For damp, coastal or chemical exposure prefer A4/316 stainless or a suitable coating; indoors, plated steel or A2 is usually sufficient.
  • Standard: This product is supplied to Trade series (Huck Magna-Grip). Quoting the standard on your order guarantees interchangeable dimensions between suppliers.

Installation & Assembly Practice

  • Drill the hole 0.1 mm over the nominal rivet diameter and deburr both sides before setting.
  • Grip range must match the total joint thickness — a rivet set outside its grip range clamps poorly and works loose.

Common Selection Mistakes with Huck Magna-Grip Lockbolt Assembly

  • Setting a rivet outside its grip range, which leaves the joint loose from day one.
  • Using aluminum rivets on steel sheet outdoors — galvanic corrosion eats the rivet.

Where Huck Magna-Grip Lockbolt Assembly Are Not the Right Choice

Not where the joint must later be disassembled, and not for high-tension structural connections.

Technical Drawing

Customize the parameters below — every spec field is editable, and the drawing redraws to match the values you choose. Changing the size will snap the other fields to that size's standard values; you can then override any individual value.

Sends the selected values to the quote form below.

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The form below follows the current technical drawing configuration. Change the drawing values above and the request details update automatically.

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Specification
Business Information

Dimensions & Specifications (Trade series (Huck Magna-Grip))

Nominal diameter (in)Grip ranges (in)Pin materialCollar materialCollar stylesHead style
3/160.062~0.625 / 0.312~1.250carbon steel or 7075-T6 aluminumcarbon steel or 6061 aluminumstandard / medium-flange / wide-flangebutton head
1/40.062~0.625 / 0.312~1.250carbon steel or 7075-T6 aluminumcarbon steel or 6061 aluminumstandard / medium-flange / wide-flangebutton head
5/160.125~0.750 / 0.625~1.375carbon steel or 7075-T6 aluminumcarbon steel or 6061 aluminumstandard / medium-flange / wide-flangebutton head
3/80.125~0.875 / 0.812~1.625carbon steel or 7075-T6 aluminumcarbon steel or 6061 aluminumstandard / medium-flange / wide-flangebutton head
Inside the plant

Manufactured in our own plant

This part is cold-formed, threaded, heat-treated and finished in-house. The stages below are where its class and finish are actually decided.

  1. Wire rod feeding into a cold heading machine
    01

    Cold heading

    Wire rod is drawn to size and cold-formed into blanks. Forming rather than cutting keeps the grain flow continuous around the head, which is where a bolt is most likely to fail.

    Head dimensions and under-head radius checked at set-up and per shift.

  2. Thread rolling machine producing bolt threads
    02

    Thread rolling

    Threads are rolled between hardened dies rather than cut. Rolled threads are stronger in fatigue than cut threads and hold pitch and flank angle far more consistently across a batch.

    Go / no-go ring gauges to ISO 965 tolerance class 6g.

  3. Baskets of bolts staged for heat treatment
    03

    Heat treatment

    Quench-and-temper brings carbon and alloy steel to the property class ordered — 8.8, 10.9 or 12.9 — with the furnace charge tracked so a finished lot can be traced back to it.

    Core hardness and tensile tested per lot to ISO 898-1.

  4. Zinc plated bolts in a treatment basket
    04

    Surface treatment

    Zinc, zinc-nickel, hot-dip galvanizing, black oxide, phosphate and Dacromet, selected against the service environment rather than against the price list.

    Coating thickness and neutral salt spray hours to ISO 9227.

Frequently Asked Questions

What material should Huck Magna-Grip Lockbolt Assembly be for outdoor use?

For damp, coastal or chemical environments specify A4 (316) stainless or a suitably coated steel. For indoor or dry use, A2 (304) stainless or zinc-plated steel is normally adequate.

Are Huck Magna-Grip Lockbolt Assembly made to a recognized standard?

Yes — they are manufactured to Trade series (Huck Magna-Grip), so dimensions are interchangeable between suppliers when you quote the standard on your order.

What are Huck Magna-Grip Lockbolt Assembly used for?

Grip-range lockbolt fastening in vibration-exposed frames and bodywork. They are supplied to Trade series (Huck Magna-Grip).

Which industries use Huck Magna-Grip Lockbolt Assembly?

They are commonly specified in truck and trailer assembly, agricultural equipment and rail and transit, among other sectors.

Can I get a quote for Huck Magna-Grip Lockbolt Assembly in the size and material I need?

Yes. Use the technical drawing and quote form on this page to set the size and options, then send the exact configuration to our team for pricing and lead time.