Hexagon Bolt Half Thread (UNC)

Material:
Grade 5, Stainless Steel 304 (A2) , Stainless Steel 316 (A4)

Finishing:
Grade 5 comes in Black Oxide and Zinc Plated finishing

Note:
Drop us an email if you have other coating requirement

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Product Description

 

Diameter 1/4 5/16 3/8 7/16 1/2 UNC 9/16 5/8
TPI 20 G 18 G 16 G 14 G 13 G 12 G 11 G
Width Across Flats (A/F) 7/16 1/2 9/16 5/8 3/4 13/16 15/16
Width Across Corners (max.) 12.8MM 14.7MM 16.5MM 18.3MM 22MM 23.8MM 27.5MM
Head Height 4MM 5.2MM 6MM 7.1MM 7.9MM 9.1MM 9.9MM
Length  1-1/4 – 6″ 1-1/2 – 7-1/2 1-3/4 – 12″ 1-3/4 – 10″ 2″ – 18″ 2-1/4 – 8″ 2-1/4 – 18″
Thread Length
(For “L” ≤6″) (min.)
3/4″ 7/8″ 1″ 1-1/8″ 1-1/4″ 1-3/8″ 1-1/2″
Thread Length
(For “L” >6″) (min.)
1″ 1-1/8″ 1-1/4″ 1-3/8″ 1-1/2″ 1-5/8″ 1-3/4″

 

Diameter 3/4 7/8 1″ 1-1/8 1-1/4 1-3/8 1-1/2
TPI 10 G 9 G 8 G 7 G 7 G 6 G 6 G
Width Across Flat (A/F) 1-1/8 1-5/16 1-1/2 1-11/16 1-7/8 2-1/16 2-1/4
Width Across Corners (max.) 33MM 38.5MM 44MM 49.5MM 55MM 60.5MM 66MM
Head Height 11.9MM 13.9MM 15.5MM 17.5MM 19.8MM 21.4MM 23.8MM
Length  2.1/2 – 24″ 3″ – 24″ 3-1/2 – 24″ 3-1/2 – 24″ 3-1/2- 24″ 4″ – 24″ 4″ – 24″
Thread Length
(For “L” ≤6″) (min.)
1-3/4″ 2″ 2-1/4″ 2-1/2″ 2-3/4″ 3″ 3-1/4″
Thread Length
(For “L” >6″) (min.)
2″ 2-1/4″ 2-1/2″ 2-3/4″ 3″ 3-1/4″ 3-1/2″