Stainless Steel Eye Plates, Eye Bolts & Fittings
SS413 304 Stainless Steel U-Bolt
The SS413 is a U-bolt in AISI 304 stainless steel, listed in ten combinations of thread (M4 to M12) and dimension B (60 to 150 mm). It is used as a through-bolted tie-down, towing or mooring point and to clamp pipes, rails and posts.

Key features
- AISI 304 stainless steel
- Ten sizes, threads M4 to M12
- B from 60 to 150 mm
- M8 offered in four B values
Specifications
| Property | Value |
|---|---|
| Material | Stainless steel 304 (AISI 304) |
| Type | U-bolt |
| M4, B 60 mm | C 30, D 30 mm |
| M5, B 80 mm | C 35, D 30 mm |
| M6, B 80 mm | C 35, D 30 mm |
| M8, B 60 mm | C 35, D 40 mm |
| M8, B 80 mm | C 35, D 35 mm |
| M8, B 100 mm | C 35, D 40 mm |
| M8, B 130 mm | C 35, D 40 mm |
| M10, B 90 mm | C 50, D 40 mm |
| M10, B 130 mm | C 50, D 40 mm |
| M12, B 150 mm | C 65, D 65 mm |
Product details
SS413 U-bolts are made from AISI 304 stainless steel in ten sizes. Thread runs from M4 up to M12, and the M8 size is offered with four B values: 60, 80, 100 and 130 mm. Across the range B extends from 60 to 150 mm, C from 30 to 65 mm and D from 30 to 65 mm, so buyers can choose the combination that fits the panel thickness and the item being fixed.
Through-bolted U-bolts are a standard way to create a tie-down, towing or mooring point on a deck, transom or trailer, and to clamp pipes, rails and posts. In marine use the legs pass through the structure and are secured with a plate and nuts on the inside, as the product drawing shows. Grade 304 suits most outdoor and sheltered marine positions; 316 is the usual step up for permanent immersion or splash zones.
No load rating is given, so the U-bolt should be treated as general mounting hardware, not a certified lifting or fall-arrest anchor. Power Honour can supply the SS413 under a private label or bend and thread U-bolts to a customer drawing.
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