Mechanical properties, corrosion behaviour and the full dimensional range for this grade.
A4 Stainless Steel Wire Rope Clip (U-Bolt) are supplied to ISO 3506 group A4 (316 / 1.4401), commonly supplied A4-80. Corrosion behaviour is superior, including marine and chloride environments, the material is largely non-magnetic, and the usable service range is approx. -200 °C to +400 °C, subject to the property class and the joint. In practice this grade is specified for marine, coastal and chemical applications.
Grade
ISO 3506 group A4 (316 / 1.4401), commonly supplied A4-80
Corrosion resistance
Superior, including marine and chloride environments
Magnetic response
Largely non-magnetic
Service temperature
approx. -200 °C to +400 °C, subject to the property class and the joint
Property values are typical for the grade. Certified mechanical test data is available on request for production orders.
Hidden Deck Fasteners Sourcing: Manufacturing, Types & Material Compatibility
A4 Stainless Steel is not a material wire rope clip (u-bolt) are supplied in. Wire Rope Clip (U-Bolt) are specified by rope diameter, and this combination does not describe a part that exists.
Need this rigging hardware in a grade that is not listed?
A4 Stainless Steel is one of the grades the catalog describes. Dimensions, material, finish and form are specified from the drawing — a rigging hardware outside the standard range is a variation on existing tooling rather than a new design. Made by hot forging.
Minimum order from 2,000 pieces; samples within 7 days of drawing approval.
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.
Dimensioned line drawing of 6 Wire Rope Clip (U-Bolt) — ISO / DIN (Series 157). Side view and top view, drawn to the dimensions in the table below and redrawn for any size selected.
U-bolt diameter (mm)
M5
Saddle width (mm)
16
Bolt thread
M5
Working load limit (kg)
60
Opens a short step to confirm the exact specification before you enter contact details.
Request a Quote
Click “Request this configuration” under the drawing to confirm the exact specification, then add your contact details. You can also send the request without a specification — but only an accurate selection gets an accurate quote.
Dimensions & Specifications (ISO / DIN)
For rope diameter (mm)
U-bolt diameter (mm)
Saddle width (mm)
Bolt thread
Working load limit (kg)
Reference standard
6
M5
16
M5
60
DIN 1142 / GB/T 5976
8
M6
20
M6
110
DIN 1142 / GB/T 5976
10
M8
26
M8
180
DIN 1142 / GB/T 5976
12
M10
32
M10
260
DIN 1142 / GB/T 5976
16
M12
38
M12
460
DIN 1142 / GB/T 5976
20
M14
45
M14
720
DIN 1142 / GB/T 5976
24
M16
55
M16
1050
DIN 1142 / GB/T 5976
30
M20
70
M20
1640
DIN 1142 / GB/T 5976
Materials & Grades
Select a material class to see the grades we supply it in. Each designation is listed with its ISO/EN, AISI/SAE, JIS and GB equivalents.
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
Should I choose A4 Stainless Steel or A2 (304) for Wire Rope Clip (U-Bolt) — ISO / DIN (Series 157)?
For Wire Rope Clip (U-Bolt) — ISO / DIN (Series 157), A4 Stainless Steel suits general indoor and outdoor use; A2 (304) is preferred for marine, coastal and chemical environments. Choose by corrosion exposure first.
Can A4 Stainless Steel Wire Rope Clip (U-Bolt) — ISO / DIN (Series 157) gall during installation?
Yes — stainless on stainless is prone to thread galling under load, especially at smaller sizes. Use an anti-galling lubricant or wax thread compound, and slow the tightening rate where possible.
Is A4 Stainless Steel food-grade?
A4 (316) is the standard food-contact stainless grade in most jurisdictions, particularly where chloride exposure (brines, dairy CIP) is present.
Can A4 Stainless Steel Wire Rope Clip (U-Bolt) — ISO / DIN (Series 157) be used with aluminum?
Yes, but stainless drives mild galvanic corrosion of aluminum in wet service — isolate with a coating, sleeve or paint, or accept the trade-off if the joint is dry and indoor.
How do I request a quotation?
Use the technical drawing on this page to pick the exact configuration, then submit it with the quote form. We respond within one business day.
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