Home / UNC Bolts, Nuts and Washers / 1/4 inch UNC Hex Head Setscrews ASME B18.2.1 in Bright Zinc Plated (BZP) USA Grade 5 High Tensile Steel

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1/4 inch UNC Hex Head Setscrews ASME B18.2.1 in Bright Zinc Plated (BZP) USA Grade 5 High Tensile Steel

Commonly referred to as a setscrew and longer versions are referred to in the United States as a tap bolt. A standard spanner or ratchet is typically used to fit this product. Used for decades on all types of assembly throughout the world. The hex drive allows a higher torque to be applied. Produced to ASME B18.2.1.

Image of UNC Hex Head Setscrews ASME B18.2.1 in BZP-G5 image

technical drawing of UNC Hex Head Setscrews ASME B18.2.1

Technical Summary

nominal diameter

1/4

tpi

threads per inch

head height

0.163

drive size

0.438

Standard

ASME B18.2.1 / SAE J429

all dimensions in inches

Datasheet

< View All Sizes

Description	Sale Qtys	Price
Hex Bolt Full Thread UNC 1/4 x 3/8 inch in BZP Grade 5 Steel WF28271 - 2708 in stock	sachet of 3 for £1.53 or box of 100 for £8.55 or bulk of 500 for £39.50	£0.00
Hex Bolt Full Thread UNC 1/4 x 1/2 inch in BZP Grade 5 Steel WF28272 - 639 in stock	sachet of 2 for £2.43 or box of 100 for £19.95 or bulk of 500 for £91.89	£0.00
Hex Bolt Full Thread UNC 1/4 x 5/8 inch in BZP Grade 5 Steel WF28273 - 1413 in stock	sachet of 2 for £0.80 or box of 100 for £7.10 or bulk of 500 for £32.01	£0.00
Hex Bolt Full Thread UNC 1/4 x 3/4 inch in BZP Grade 5 Steel WF30034 - 681 in stock	sachet of 2 for £2.39 or box of 100 for £19.14 or bulk of 500 for £87.39	£0.00
Hex Bolt Full Thread UNC 1/4 x 7/8 inch in BZP Grade 5 Steel WF28275 - 35 in stock	sachet of 2 for £1.66 or box of 100 for £13.75 or bulk of 500 for £62.04	£0.00
Hex Bolt Full Thread UNC 1/4 x 1 inch in BZP Grade 5 Steel WF30035 - 481 in stock	single bolt for £0.79 or box of 80 for £10.54 or bulk of 400 for £47.79	£0.00
Hex Bolt Full Thread UNC 1/4 x 1-1/8 inch in BZP Grade 5 Steel WF28277 - 3905 in stock	single bolt for £1.32 or box of 80 for £17.10 or bulk of 400 for £77.83	£0.00
Hex Bolt Full Thread UNC 1/4 x 1-1/4 inch in BZP Grade 5 Steel WF30036 - 346 in stock	sachet of 2 for £1.32 or box of 100 for £11.55 or bulk of 500 for £50.57	£0.00
Hex Bolt Full Thread UNC 1/4 x 1-1/2 inch in BZP Grade 5 Steel WF30037 - expected in 4 to 6 days	sachet of 2 for £2.42 or box of 100 for £20.02 or bulk of 500 for £88.96	£0.00
Hex Bolt Full Thread UNC 1/4 x 1-3/4 inch in BZP Grade 5 Steel WF30038 - 393 in stock	single bolt for £1.71 or box of 80 for £22.21 or bulk of 400 for £99.86	£0.00
Hex Bolt Full Thread UNC 1/4 x 2 inch in BZP Grade 5 Steel WF30039 - 403 in stock	single bolt for £1.10 or box of 80 for £14.97 or bulk of 400 for £65.61	£0.00
Hex Bolt Full Thread UNC 1/4 x 2-1/4 inch in BZP Grade 5 Steel WF30040 - 136 in stock	single bolt for £2.47 or box of 40 for £17.40 or bulk of 200 for £80.06	£0.00
Hex Bolt Full Thread UNC 1/4 x 2-1/2 inch in BZP Grade 5 Steel WF30041 - 664 in stock	single bolt for £1.31 or box of 80 for £17.72 or bulk of 400 for £78.33	£0.00
Hex Bolt Full Thread UNC 1/4 x 2-3/4 inch in BZP Grade 5 Steel WF30042 - 33 in stock	single bolt for £2.43 or box of 50 for £19.90 or bulk of 250 for £89.90	£0.00
Hex Bolt Full Thread UNC 1/4 x 3 inch in BZP Grade 5 Steel WF30043 - 109 in stock	single bolt for £3.06 or box of 20 for £21.46 or bulk of 100 for £100.34	£0.00
Hex Bolt Full Thread UNC 1/4 x 3-1/4 inch in BZP Grade 5 Steel WF30044 - 805 in stock	single bolt for £2.64 or box of 30 for £18.65 or bulk of 150 for £85.91	£0.00
Hex Bolt Full Thread UNC 1/4 x 3-1/2 inch in BZP Grade 5 Steel WF30045 - 178 in stock	single bolt for £2.85 or box of 20 for £17.09 or bulk of 100 for £79.72	£0.00
Hex Bolt Full Thread UNC 1/4 x 5 inch in BZP Grade 5 Steel WF30048 - 94 in stock	single bolt for £2.74 or box of 30 for £21.76 or bulk of 150 for £98.59	£0.00

Hex Bolt Full Thread UNC 1/4 x 3/8 inch in BZP Grade 5 Steel
WF28271 - 2708 in stock

sachet of 3 for £1.53
or box of 100 for £8.55
or bulk of 500 for £39.50

£0.00

Hex Bolt Full Thread UNC 1/4 x 1/2 inch in BZP Grade 5 Steel
WF28272 - 639 in stock

sachet of 2 for £2.43
or box of 100 for £19.95
or bulk of 500 for £91.89

£0.00

Hex Bolt Full Thread UNC 1/4 x 5/8 inch in BZP Grade 5 Steel
WF28273 - 1413 in stock

sachet of 2 for £0.80
or box of 100 for £7.10
or bulk of 500 for £32.01

£0.00

Hex Bolt Full Thread UNC 1/4 x 3/4 inch in BZP Grade 5 Steel
WF30034 - 681 in stock

sachet of 2 for £2.39
or box of 100 for £19.14
or bulk of 500 for £87.39

£0.00

Hex Bolt Full Thread UNC 1/4 x 7/8 inch in BZP Grade 5 Steel
WF28275 - 35 in stock

sachet of 2 for £1.66
or box of 100 for £13.75
or bulk of 500 for £62.04

£0.00

Hex Bolt Full Thread UNC 1/4 x 1 inch in BZP Grade 5 Steel
WF30035 - 481 in stock

single bolt for £0.79
or box of 80 for £10.54
or bulk of 400 for £47.79

£0.00

Hex Bolt Full Thread UNC 1/4 x 1-1/8 inch in BZP Grade 5 Steel
WF28277 - 3905 in stock

single bolt for £1.32
or box of 80 for £17.10
or bulk of 400 for £77.83

£0.00

Hex Bolt Full Thread UNC 1/4 x 1-1/4 inch in BZP Grade 5 Steel
WF30036 - 346 in stock

sachet of 2 for £1.32
or box of 100 for £11.55
or bulk of 500 for £50.57

£0.00

Hex Bolt Full Thread UNC 1/4 x 1-1/2 inch in BZP Grade 5 Steel
WF30037 - expected in 4 to 6 days

sachet of 2 for £2.42
or box of 100 for £20.02
or bulk of 500 for £88.96

£0.00

Hex Bolt Full Thread UNC 1/4 x 1-3/4 inch in BZP Grade 5 Steel
WF30038 - 393 in stock

single bolt for £1.71
or box of 80 for £22.21
or bulk of 400 for £99.86

£0.00

Hex Bolt Full Thread UNC 1/4 x 2 inch in BZP Grade 5 Steel
WF30039 - 403 in stock

single bolt for £1.10
or box of 80 for £14.97
or bulk of 400 for £65.61

£0.00

Hex Bolt Full Thread UNC 1/4 x 2-1/4 inch in BZP Grade 5 Steel
WF30040 - 136 in stock

single bolt for £2.47
or box of 40 for £17.40
or bulk of 200 for £80.06

£0.00

Hex Bolt Full Thread UNC 1/4 x 2-1/2 inch in BZP Grade 5 Steel
WF30041 - 664 in stock

single bolt for £1.31
or box of 80 for £17.72
or bulk of 400 for £78.33

£0.00

Hex Bolt Full Thread UNC 1/4 x 2-3/4 inch in BZP Grade 5 Steel
WF30042 - 33 in stock

single bolt for £2.43
or box of 50 for £19.90
or bulk of 250 for £89.90

£0.00

Hex Bolt Full Thread UNC 1/4 x 3 inch in BZP Grade 5 Steel
WF30043 - 109 in stock

single bolt for £3.06
or box of 20 for £21.46
or bulk of 100 for £100.34

£0.00

Hex Bolt Full Thread UNC 1/4 x 3-1/4 inch in BZP Grade 5 Steel
WF30044 - 805 in stock

single bolt for £2.64
or box of 30 for £18.65
or bulk of 150 for £85.91

£0.00

Hex Bolt Full Thread UNC 1/4 x 3-1/2 inch in BZP Grade 5 Steel
WF30045 - 178 in stock

single bolt for £2.85
or box of 20 for £17.09
or bulk of 100 for £79.72

£0.00

Hex Bolt Full Thread UNC 1/4 x 5 inch in BZP Grade 5 Steel
WF30048 - 94 in stock

single bolt for £2.74
or box of 30 for £21.76
or bulk of 150 for £98.59

£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

1/4

tpi

threads per inch

head height

0.163

drive size

0.438

Standard

ASME B18.2.1 / SAE J429

all dimensions in inches

Datasheet