5 catalogued sizes, dimensioned to Trade series (self-clinching, IFI-111 practice). Pick any row and the technical drawing redraws to it.
Self-Clinching Press-Fit Nuts to Trade series (self-clinching, IFI-111 practice) are catalogued in sizes M3 to M8, with dia 4.2-9.55 mm, long 3.3-5.7 mm, thick 0.8-1.5 mm. 5 sizes are held in the table below, and the technical drawing redraws to whichever row you select.
Standard
Trade series (self-clinching, IFI-111 practice)
Size range
M3-M8
Dia
4.2-9.55 mm
Long
3.3-5.7 mm
Catalogued sizes
5
Dimensions are nominal values from the governing standard. Confirm the tolerance class for your application before ordering.
Self-Clinching Press-Fit Nuts — Trade series (self-clinching, IFI-111 practice)
Sheet metal fabricationThreads in enclosure and chassis panels on the press line.
Electronics enclosuresCaptive threads for lids, brackets and PCB mounts.
Automotive & transportVibration-prone joints where the locking type is specified on the drawing.
Maintenance & MROReplacements matched to the existing bolt class, thread and finish.
Building servicesThreaded rod, channel and suspension assemblies.
Typical applications
limited by sheet HARDNESS, not sheet thickness
a permanent torque-resistant thread in sheet too thin to tap
installed by press, never by hammer
joints re-torqued at a service interval
completing a bolted joint on a stud, rod or bolt
locking an adjustment so it cannot drift
Service conditions to specify against
Marine and coastal
Available in A4 (316) stainless for chloride exposure — coastal structures, pool halls, water treatment and deck hardware, where A2 will eventually pit.
High load
Supplied in ISO 898-1 property classes, so the joint can be designed to a stated proof load and tightened to a calculated torque rather than by feel.
Match the class
A nut below the bolt property class strips before the bolt reaches its own limit — pair class 8 nuts with 8.8 bolts, class 10 with 10.9.
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.
Request a Quotation for Self-Clinching Press-Fit Nuts
The form below follows the current technical drawing configuration. Change the drawing values above and the request details update automatically.
Dimensions & Specifications (Trade series (self-clinching, IFI-111 practice))
Every row below is a starting point for the customizer above — pick any size and the drawing will redraw to that row.
Self-Clinching Press-Fit Nuts conform to Trade series (self-clinching, IFI-111 practice). As nuts, they are specified by the dimensions in the table below; this page also covers materials, finishes and typical uses.
What Are Self-Clinching Press-Fit Nuts?
Self-Clinching Press-Fit Nuts are nuts defined by Trade series (self-clinching, IFI-111 practice). They are selected by thread size and the dimensional characteristics shown below, and are available in a range of materials and finishes to suit the application and environment.
Materials & Finishes
Common materials include carbon steel (typically zinc plated or hot-dip galvanized), alloy steel in property classes 8.8, 10.9 and 12.9, and stainless steel A2 (304) or A4 (316) for corrosion resistance. Specify the material, property class and surface finish appropriate to your load and environment.
Specification Guides
Each size, material and standard of Self-Clinching Press-Fit Nuts has its own reference page with the figures for that one configuration.
Self-Clinching Press-Fit Nuts are supplied to order. Pricing starts from approximately US$0.090 per piece for standard sizes in carbon steel; final pricing depends on size, material, finish and order quantity (MOQ applies). Submit your exact configuration with the quote form above.
Self-Clinching Press-Fit Nuts — Trade series (self-clinching, IFI-111 practice)
This part is cold-formed, threaded, heat-treated and finished in-house. The stages below are where its class and finish are actually decided.
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.
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.
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.
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 is the controlling standard for Self-Clinching Press-Fit Nuts?
Self-Clinching Press-Fit Nuts are manufactured to Trade series (self-clinching, IFI-111 practice). The dimensional values on this page follow that standard.
Which sizes of Self-Clinching Press-Fit Nuts does Engineering Hardware supply?
The table on this page lists 5 sizes for Self-Clinching Press-Fit Nuts, ranging from M3 to M8. Sizes outside the table can be quoted on request.
In which materials are Self-Clinching Press-Fit Nuts supplied?
Self-Clinching Press-Fit Nuts are supplied in matching property-class steel and stainless A2 / A4, with finishes including zinc plating, hot-dip galvanizing and black oxide. Choose material and finish to suit the load and the service environment for Self-Clinching Press-Fit Nuts.
How do I request a quotation?
Use the parametric drawing on this page to set the exact configuration (size, material, finish) and click "Request this configuration" — a specialist from Engineering Hardware will respond within one business day.
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