Home / UNF Bolts, Nuts and Washers / 3/8 inch UNF Hex Head Bolts ASME B18. 2.1 in Bright Zinc Plated (BZP) USA Grade 5 High Tensile Steel

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3/8 inch UNF Hex Head Bolts ASME B18. 2.1 in Bright Zinc Plated (BZP) USA Grade 5 High Tensile Steel

The most common type of fastener, a hex head bolt is designed to be tightened with a standard spanner or ratchet and socket. Popularly used in all assemblies, a standard hex bolt is a staple across the world. Manufactured to ASME B18. 2.1, and includes an unthreaded 'shoulder' or portion of the shank. A hex drive permits a greater torque load to be applied to the joint over most other drive types.

Image of UNF Hex Head Bolts ASME B18. 2.1 in BZP-G5 image

technical drawing of UNF Hex Head Bolts ASME B18. 2.1

Technical Summary

nominal diameter

3/8

tpi

threads per inch

s max. (inch)

drive size

0.562

k max. (inch)

head height

0.268

b nom. (inch)

nominal thread length

1.000

Standard

ASME B18.2.1 / SAE J429

all dimensions in inches

Datasheet

< View All Sizes

Description	Sale Qtys	Price
Hex Bolt Part Thread UNF 3/8 x 1-1/2 inch in BZP Grade 5 Steel WF27961 - 100 in stock	single bolt for £3.34 or box of 40 for £52.87 or bulk of 200 for £250.94	£0.00
Hex Bolt Part Thread UNF 3/8 x 1-3/4 inch in BZP Grade 5 Steel WF27962 - 215 in stock	single bolt for £3.45 or box of 15 for £22.66 or bulk of 75 for £105.16	£0.00
Hex Bolt Part Thread UNF 3/8 x 2 inch in BZP Grade 5 Steel WF27963 - 105 in stock	single bolt for £3.68 or box of 10 for £17.58 or bulk of 50 for £82.46	£0.00
Hex Bolt Part Thread UNF 3/8 x 2-1/4 inch in BZP Grade 5 Steel WF27964 - 220 in stock	single bolt for £2.63 or box of 30 for £18.13 or bulk of 150 for £80.21	£0.00
Hex Bolt Part Thread UNF 3/8 x 2-1/2 inch in BZP Grade 5 Steel WF27965 - 123 in stock	single bolt for £2.40 or box of 50 for £20.15 or bulk of 250 for £88.38	£0.00
Hex Bolt Part Thread UNF 3/8 x 2-3/4 inch in BZP Grade 5 Steel WF27966 - 105 in stock	single bolt for £4.09 or box of 8 for £17.61 or bulk of 40 for £82.48	£0.00
Hex Bolt Part Thread UNF 3/8 x 3 inch in BZP Grade 5 Steel WF27967 - 44 in stock	single bolt for £4.39 or box of 8 for £20.24 or bulk of 40 for £94.44	£0.00
Hex Bolt Part Thread UNF 3/8 x 3-1/4 inch in BZP Grade 5 Steel WF27968 - 277 in stock	single bolt for £3.37 or box of 8 for £11.28 or bulk of 40 for £52.73	£0.00
Hex Bolt Part Thread UNF 3/8 x 3-1/2 inch in BZP Grade 5 Steel WF27969 - 135 in stock	single bolt for £3.51 or box of 15 for £23.47 or bulk of 75 for £106.39	£0.00
Hex Bolt Part Thread UNF 3/8 x 3-3/4 inch in BZP Grade 5 Steel WF27971 - 40 in stock	single bolt for £3.17 or box of 15 for £17.87 or bulk of 75 for £79.99	£0.00
Hex Bolt Part Thread UNF 3/8 x 4 inch in BZP Grade 5 Steel WF27973 - 62 in stock	single bolt for £2.87 or box of 30 for £24.52 or bulk of 150 for £108.84	£0.00
Hex Bolt Part Thread UNF 3/8 x 4-1/2 inch in BZP Grade 5 Steel WF27975 - 44 in stock	single bolt for £3.30 or box of 15 for £19.97 or bulk of 75 for £88.74	£0.00
Hex Bolt Part Thread UNF 3/8 x 5 inch in BZP Grade 5 Steel WF27977 - 64 in stock	single bolt for £3.45 or box of 6 for £9.01 or bulk of 30 for £41.91	£0.00
Hex Bolt Part Thread UNF 3/8 x 5-1/2 inch in BZP Grade 5 Steel WF27978 - 84 in stock	single bolt for £3.06 or box of 20 for £20.31 or bulk of 100 for £89.64	£0.00
Hex Bolt Part Thread UNF 3/8 x 6 inch in BZP Grade 5 Steel WF27979 - 162 in stock	single bolt for £4.00 or box of 10 for £20.94 or bulk of 50 for £94.01	£0.00

Hex Bolt Part Thread UNF 3/8 x 1-1/2 inch in BZP Grade 5 Steel
WF27961 - 100 in stock

single bolt for £3.34
or box of 40 for £52.87
or bulk of 200 for £250.94

£0.00

Hex Bolt Part Thread UNF 3/8 x 1-3/4 inch in BZP Grade 5 Steel
WF27962 - 215 in stock

single bolt for £3.45
or box of 15 for £22.66
or bulk of 75 for £105.16

£0.00

Hex Bolt Part Thread UNF 3/8 x 2 inch in BZP Grade 5 Steel
WF27963 - 105 in stock

single bolt for £3.68
or box of 10 for £17.58
or bulk of 50 for £82.46

£0.00

Hex Bolt Part Thread UNF 3/8 x 2-1/4 inch in BZP Grade 5 Steel
WF27964 - 220 in stock

single bolt for £2.63
or box of 30 for £18.13
or bulk of 150 for £80.21

£0.00

Hex Bolt Part Thread UNF 3/8 x 2-1/2 inch in BZP Grade 5 Steel
WF27965 - 123 in stock

single bolt for £2.40
or box of 50 for £20.15
or bulk of 250 for £88.38

£0.00

Hex Bolt Part Thread UNF 3/8 x 2-3/4 inch in BZP Grade 5 Steel
WF27966 - 105 in stock

single bolt for £4.09
or box of 8 for £17.61
or bulk of 40 for £82.48

£0.00

Hex Bolt Part Thread UNF 3/8 x 3 inch in BZP Grade 5 Steel
WF27967 - 44 in stock

single bolt for £4.39
or box of 8 for £20.24
or bulk of 40 for £94.44

£0.00

Hex Bolt Part Thread UNF 3/8 x 3-1/4 inch in BZP Grade 5 Steel
WF27968 - 277 in stock

single bolt for £3.37
or box of 8 for £11.28
or bulk of 40 for £52.73

£0.00

Hex Bolt Part Thread UNF 3/8 x 3-1/2 inch in BZP Grade 5 Steel
WF27969 - 135 in stock

single bolt for £3.51
or box of 15 for £23.47
or bulk of 75 for £106.39

£0.00

Hex Bolt Part Thread UNF 3/8 x 3-3/4 inch in BZP Grade 5 Steel
WF27971 - 40 in stock

single bolt for £3.17
or box of 15 for £17.87
or bulk of 75 for £79.99

£0.00

Hex Bolt Part Thread UNF 3/8 x 4 inch in BZP Grade 5 Steel
WF27973 - 62 in stock

single bolt for £2.87
or box of 30 for £24.52
or bulk of 150 for £108.84

£0.00

Hex Bolt Part Thread UNF 3/8 x 4-1/2 inch in BZP Grade 5 Steel
WF27975 - 44 in stock

single bolt for £3.30
or box of 15 for £19.97
or bulk of 75 for £88.74

£0.00

Hex Bolt Part Thread UNF 3/8 x 5 inch in BZP Grade 5 Steel
WF27977 - 64 in stock

single bolt for £3.45
or box of 6 for £9.01
or bulk of 30 for £41.91

£0.00

Hex Bolt Part Thread UNF 3/8 x 5-1/2 inch in BZP Grade 5 Steel
WF27978 - 84 in stock

single bolt for £3.06
or box of 20 for £20.31
or bulk of 100 for £89.64

£0.00

Hex Bolt Part Thread UNF 3/8 x 6 inch in BZP Grade 5 Steel
WF27979 - 162 in stock

single bolt for £4.00
or box of 10 for £20.94
or bulk of 50 for £94.01

£0.00

Prices are subject to quantity discounts based on a sliding scale. Enter the desired quantity in the relevant box in the table above. This will automatically calculate a line price indicating the applicable rate for the quantities selected. All prices shown exclude VAT.

Technical Summary

nominal diameter

3/8

tpi

threads per inch

s max. (inch)

drive size

0.562

k max. (inch)

head height

0.268

b nom. (inch)

nominal thread length

1.000

Standard

ASME B18.2.1 / SAE J429

all dimensions in inches

Datasheet