FREE Delivery
Australian Owned
Spend DISCOUNTS
All Categories
BSF
Compare your fastener to our visual size guide to confirm size, pitch and length.
BSF Allthread
3 BSF (British Standard Fine) allthread variants in A4-70 G316 marine-grade stainless. The British imperial fine-pitch standard — used in legacy British and European equipment that pre-dates metric standardisation.
Materials and grades
A4-70 G316 marine-grade stainless across the range.
Sizes and lengths
1/4" (26 TPI), 5/16" (22 TPI), 3/8" (20 TPI). Length: 3 foot (914mm).
Thread profile
55° BSF thread angle. NOT compatible with UNF (60° angle) — the two will cross-thread. Pairs only with BSF nuts.
Standards
AS3501 (Australian Standard for imperial fasteners).
Pairs with
Match with nuts and washers of the same thread profile and matching corrosion resistance. See the full allthread range for other thread profiles.
Buy with confidence: 15+ years experience selling online, > 25,000 stock lines, 200 million pieces ex stock in Brisbane QLD
Prices: Includes GST, a Tax Invoice and Free Standard Delivery anywhere in Australia
-
Free shipping
In stock
1/4" x 26 TPI x 3 Foot (914mm) BSF Fine Stainless A4-70 G316 Allthread Threaded Rod AS 3501As low as $110.500 each -
Free shipping
In stock
5/16" x 22 TPI x 3 Foot (914mm) BSF Fine Stainless A4-70 G316 Allthread Threaded Rod AS 3501As low as $170.000 each -
Free shipping
In stock
3/8" x 20 TPI x 3 Foot (914mm) BSF Fine Stainless A4-70 G316 Allthread Threaded Rod AS 3501As low as $187.000 each
3 BSF (British Standard Fine) allthread variants. 1/4" to 3/8" in A4-70 G316 marine-grade stainless. For legacy British and European fine-thread equipment.
TECHNICAL RESOURCES
Need help identifying your allthread? See our thread size identification guide.
Key charts and specification sheets: Imperial vs Metric Strength Chart · Specs - Allthread BSF Fine Stainless G316 AS3501
For full sizing data and standards, see our Technical PDF's Library.
