Square Head Set Screws

Use these set screws for light duty holding. A square head allows them to be turned by hand, or fastened with a wrench when you need more torque. The cup point has a thin edge that digs into the contact surface for a secure hold. Length is measured from under the head. Also known as Jack Bolts, or Pusher Bolts.

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All 3/8 1/2 5/8 3/4 7/8 1 1 1/4 1 1/2 1 3/4 50MM 2 2 1/4 60MM 2 1/2 2 3/4 3 3 1/2 4 4 1/2 5 5 1/2 6 6 1/2 7 8 9 10 12

Part Number

All 188SSSHD3/8-16X3 188SSSHD5/16-18X1/2 SQHDSET10-32X1/2 SQHDSET3/8-16X3/8 SQHDSET7/16-14X5/8 SQHDSET7/16-14X7/8 SQHDSET7/8-9X11/2 SQHDSET7/8-9X13/4 SQHDSET7/8-9X61/2 SSSHD1-8X21/2PL SSSHD1-8X2PL SSSHD1-8X31/2PL SSSHD1-8X8PL SSSHD1/2-13X11/2PL SSSHD1/2-13X21/4PL SSSHD1/2-13X23/4PL SSSHD1/2-13X2PL SSSHD1/2-13X3/4PL SSSHD1/2-13X31/2PL SSSHD1/2-13X3PL SSSHD1/2-13X4PL SSSHD1/2-13X5/8PL SSSHD1/2-13X61/2PL SSSHD1/2-13X6PL SSSHD1/2-13X7/8PL SSSHD1/2-13X8PL SSSHD1/4-20X11/2PL SSSHD1/4-20X11/4PL SSSHD1/4-20X13/4PL SSSHD1/4-20X21/2PL SSSHD1/4-20X2PL SSSHD1/4-20X3/4PL SSSHD1/4-20X3/8PL SSSHD1/4-20X31/2PL SSSHD1/4-20X3PL SSSHD1/4-20X4PL SSSHD1/4-20X5/8PL SSSHD1/4-20X5PL SSSHD1/4-20X6PL SSSHD1/4-28X3/4PL SSSHD3/4-10X10PL SSSHD3/4-10X11/2PL SSSHD3/4-10X11/4PL SSSHD3/4-10X13/4PL SSSHD3/4-10X1PL SSSHD3/4-10X21/4PL SSSHD3/4-10X2PL SSSHD3/4-10X31/2PL SSSHD3/4-10X3PL SSSHD3/4-10X41/2PL SSSHD3/4-10X4PL SSSHD3/4-10X5PL SSSHD3/4-10X6PL SSSHD3/8-16X1/2PL SSSHD3/8-16X1/2ZP SSSHD3/8-16X11/2PL SSSHD3/8-16X11/4PL SSSHD3/8-16X21/2PL SSSHD3/8-16X21/4PL SSSHD3/8-16X23/4PL SSSHD3/8-16X2PL SSSHD3/8-16X3/4PL SSSHD3/8-16X31/2PL SSSHD3/8-16X3PL SSSHD3/8-16X41/2PL SSSHD3/8-16X4PL SSSHD3/8-16X5/8PL SSSHD3/8-16X5PL SSSHD3/8-16X6PL SSSHD3/8-16X7PL SSSHD3/8-16X8PL SSSHD3/8-24X1PL SSSHD3/8-24X21/2PL SSSHD5/16-18X1/2PL SSSHD5/16-18X11/2PL SSSHD5/16-18X11/4PL SSSHD5/16-18X1PL SSSHD5/16-18X21/2PL SSSHD5/16-18X21/4PL SSSHD5/16-18X2PL SSSHD5/16-18X31/2PL SSSHD5/16-18X3PL SSSHD5/16-18X4PL SSSHD5/16-18X5PL SSSHD5/16-24X1PL SSSHD5/8-11X11/2PL SSSHD5/8-11X11/4PL SSSHD5/8-11X13/4PL SSSHD5/8-11X1PL SSSHD5/8-11X23/4PL SSSHD5/8-11X3/4PL SSSHD5/8-11X3PL SSSHD5/8-11X4PL SSSHD5/8-11X51/2PL SSSHD5/8-11X5PL SSSHD5/8-11X6PL SSSHD5/8-11X7/8PL SSSHD5/8-18X31/2PL SSSHD7/16-14X11/2PL SSSHD7/16-14X11/4PL SSSHD7/16-14X1PL SSSHD7/16-14X21/2PL SSSHD7/16-14X2PL SSSHD7/16-14X3/4PL SSSHD7/16-14X3PL SSSHD7/16-14X4PL SSSHD7/8-9X21/2PL SSSHD7/8-9X2PL SSSHD7/8-9X31/2PL SSSHD7/8-9X3PL SSSHD7/8-9X41/2PL SSSHD7/8-9X51/2PL SSSHD7/8-9X5PL SSSHD7/8-9X6PL SSSHD7/8-9X8PL SSSHD9/16-12X2PL SSSHD9/16-12X3PL

Page 1 of 14

1/4

188SSSHD1/4-20X3/4
1/4" - 20 X 3/4" SQUARE HEAD SET SCREWS CUP POINT COARSE STAIN A2 (18-8)
F
0

Head Style:	Square headSquare head
Drive:
Diameter:	1/41/4
Length:	3/43/4
Material:	SteelSteel
Finish:	PlainPlain
Part Number:

UM: EA
Pkg Qty: 100

Qty

3/8

188SSSHD3/8-16X11/2
3/8" - 16 X 1 1/2" SQUARE HEAD SET SCREWS CUP POINT COARSE STAIN A2 (18-8)
F
0

Head Style:	Square headSquare head
Drive:
Diameter:	3/83/8
Length:	1 1/21 1/2
Material:	SteelSteel
Finish:	PlainPlain
Part Number:

UM: EA
Pkg Qty: 100

Qty

3/8

188SSSHD3/8-16X2
3/8" - 16 X 2" SQUARE HEAD SET SCREWS CUP POINT COARSE STAIN A2 (18-8)
F
0

Head Style:	Square headSquare head
Drive:
Diameter:	3/83/8
Length:	22
Material:	SteelSteel
Finish:	PlainPlain
Part Number:

UM: EA
Pkg Qty: 100

Qty

3/8

188SSSHD3/8-16X3
3/8" - 16 X 3" SQUARE HEAD SET SCREWS CUP POINT COARSE STAIN A2 (18-8)
F
0

Head Style:	Square headSquare head
Drive:
Diameter:	3/83/8
Length:	33
Material:	StainlessStainless
Finish:	PlainPlain
Part Number:	188SSSHD3/8-16X3188SSSHD3/8-16X3

UM: EA
Pkg Qty: 50

Qty

3/8

188SSSHD3/8-16X31/2
3/8" - 16 X 3 1/2" SQUARE HEAD SET SCREWS CUP POINT COARSE STAIN A2 (18-8)
F
0

Head Style:	Square headSquare head
Drive:
Diameter:	3/83/8
Length:	3 1/23 1/2
Material:	SteelSteel
Finish:	PlainPlain
Part Number:

UM: EA
Pkg Qty: 50

Qty

3/8

188SSSHD3/8-16X4
3/8" - 16 X 4" SQUARE HEAD SET SCREWS CUP POINT COARSE STAIN A2 (18-8)
F
0

Head Style:	Square headSquare head
Drive:
Diameter:	3/83/8
Length:	44
Material:	SteelSteel
Finish:	PlainPlain
Part Number:

UM: EA
Pkg Qty: 50

Qty

3/8

188SSSHD3/8-16X51/2
3/8" - 16 X 5 1/2" SQUARE HEAD SET SCREWS CUP POINT COARSE STAIN A2 (18-8)
F
0

Head Style:	Square headSquare head
Drive:
Diameter:	3/83/8
Length:	5 1/25 1/2
Material:	StainlessStainless
Finish:	PlainPlain
Part Number:

UM: EA
Pkg Qty: 1

Qty

3/8

188SSSHD3/8-16X6
3/8" - 16 X 6" SQUARE HEAD SET SCREWS CUP POINT COARSE STAIN A2 (18-8)
F
0

Head Style:	Square headSquare head
Drive:
Diameter:	3/83/8
Length:	66
Material:	StainlessStainless
Finish:	PlainPlain
Part Number:

UM: EA
Pkg Qty: 1

Qty

5/16

188SSSHD5/16-18X1/2
5/16" - 18 X 1/2" SQUARE HEAD SET SCREWS CUP POINT COARSE STAIN A2 (18-8)
F
0

Head Style:	Square headSquare head
Drive:
Diameter:	5/165/16
Length:	1/21/2
Material:	StainlessStainless
Finish:	PlainPlain
Part Number:	188SSSHD5/16-18X1/2188SSSHD5/16-18X1/2

UM: EA
Pkg Qty: 100

Qty

1/2

316SSSHD1/2-13X4
1/2" - 13 X 4" (FT) SQUARE HEAD SET SCREWS CUP POINT COARSE 316 STAINLESS
F
0

Head Style:	Square headSquare head
Drive:
Diameter:	1/21/2
Length:	44
Material:	SteelSteel
Finish:	PlainPlain
Part Number:

UM: EA
Pkg Qty: 25

Qty

#10 - 32 X 1/2

SQHDSET10-32X1/2
#10 - 32 X 1/2" SQUARE HEAD SET SCREWS CUP POINT COARSE ALLOY PL
F
0

Head Style:	Square headSquare head
Drive:
Diameter:	#10#10
Length:	1/21/2
Material:	SteelSteel
Finish:	PlainPlain
Part Number:	SQHDSET10-32X1/2SQHDSET10-32X1/2

UM: EA
Pkg Qty: 100

Qty

3/8

SQHDSET3/8-16X3/8
3/8" - 16 X 3/8" SQUARE HEAD SET SCREWS CUP POINT COARSE CASE HARDENED
F
0

Head Style:	Square headSquare head
Drive:
Diameter:	3/83/8
Length:	3/83/8
Material:	SteelSteel
Finish:	PlainPlain
Part Number:	SQHDSET3/8-16X3/8SQHDSET3/8-16X3/8

UM: EA
Pkg Qty: 100

Qty

Page 1 of 14

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