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UNC BSW

UNC BSW
Not sure what size or thread you have or need?
Compare your allthread to our visual size guide to confirm the diameter, thread and pitch before you order.
If you know the fastener diameter

Compare your fastener to our visual size guide to confirm size, pitch and length.

Open the identification guide ›

Allthread / threaded rod diagram showing diameter and thread

UNC BSW Allthread

53 imperial coarse allthread variants combining UNC (American Unified National Coarse) and BSW (British Standard Whitworth Coarse). The two profiles are interchangeable for general work, so we stock them together. 1/8" through 1" in 3 foot (914mm) lengths.

Materials and grades

Stainless steel (25 variants in A2-70 G304 and A4-70 G316), zinc plated (16) and brass (12).

Sizes and lengths

1/8", 3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 5/8", 3/4", 7/8", 1". Length: 3 foot (914mm).

Thread profile

Imperial coarse threads — UNC (60° thread angle) and BSW (55° thread angle). The two are nearly interchangeable on common sizes; for engineering-critical work match the nut to the rod standard.

Standards

IFI 136C (Industrial Fastener Institute) and AS3501 (Australian Standard for imperial-thread 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

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53 imperial coarse allthread variants (UNC and BSW). 1/8" to 1" in stainless A4-70 G316, A2-70 G304, zinc plated and brass. 3 foot stock lengths.

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 BSW Coarse Stainless G304 AS3501 · Specs - Allthread BSW Coarse Stainless G316 AS3501 · Specs - Allthread BSW UNC Coarse Brass AS3501

For full sizing data and standards, see our Technical PDF's Library.

Filter by :
Filter By
Category
System of Measurement
  1. Imperial 53 items
Size
  1. 1/8" 3 items
  2. 5/32" 2 items
  3. 3/16" 3 items
  4. 1/4" 4 items
  5. 5/16" 4 items
  6. 3/8" 4 items
  7. 7/16" 4 items
  8. 1/2" 6 items
  9. 9/16" 2 items
  10. 5/8" 4 items
  11. 3/4" 4 items
  12. 7/8" 4 items
  13. 1" 4 items
  14. 1-1/8" 2 items
  15. 1-1/4" 2 items
  16. 1-1/2" 1 item
Size & Thread Pitch
  1. 1/8" x 40 TPI UNC 1 item
  2. 1/8" x 40 TPI BSW 2 items
  3. 5/32" x 32 TPI BSW 2 items
  4. 3/16" (#10-24) x 24 TPI BSW 2 items
  5. #10-24 (3/16") x 24 TPI UNC 1 item
  6. 1/4" x 20 TPI UNC 2 items
  7. 1/4" x 20 TPI BSW 2 items
  8. 5/16" x 18 TPI BSW 2 items
  9. 5/16" x 18 TPI UNC 2 items
  10. 3/8" x 16 TPI BSW 2 items
  11. 3/8" x 16 TPI UNC 2 items
  12. 7/16" x 14 TPI BSW 2 items
  13. 7/16" x 14 TPI UNC 2 items
  14. 1/2" x 12 TPI BSW 4 items
  15. 1/2" x 13 TPI UNC 2 items
  16. 9/16" x 12 TPI BSW 1 item
  17. 9/16" x 12 TPI UNC 1 item
  18. 5/8" x 11 TPI BSW 2 items
  19. 5/8" x 11 TPI UNC 2 items
  20. 3/4" x 10 TPI BSW 2 items
  21. 3/4" x 10 TPI UNC 2 items
  22. 7/8" x 9 TPI BSW 2 items
  23. 7/8" x 9 TPI UNC 2 items
  24. 1" x 8 TPI BSW 2 items
  25. 1" x 8 TPI UNC 2 items
  26. 1-1/8" x 7 TPI BSW 1 item
  27. 1-1/8" x 7 TPI UNC 1 item
  28. 1-1/4" x 7 TPI BSW 1 item
  29. 1-1/4" x 7 TPI UNC 1 item
  30. 1-1/2" x 6 TPI BSW 1 item
Length
  1. 3 Foot (914mm) 53 items
Material / Finish
  1. Brass 12 items
  2. Stainless Steel 25 items
  3. Zinc Silver Plated 16 items
Class / Grade
  1. A2-70 G304 10 items
  2. A4-70 G316 15 items
  3. Low Tensile Grade 2 16 items
  4. Low Tensile Class 4.6 12 items
Corrosion Protection Level
  1. Ultimate 27 items
  2. Excellent 10 items
  3. Moderate 16 items
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