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Stainless Flat Head Socket Screws - Size 5/16-18

Stainless Flat Head Socket Screws - Size 5/16-18

These quality flat socket head bolts are countersunk so they sit flush with the surface after being installed. Standard sizes range from 4-40 up through 1/2". Larger sizes are available by request. Length is measured from top to bottom. Type 316 stainless is available by request.
Please select the size below for more information.




Flat Head Socket Cap Screw 5/16-18 x 1/2

Flat Head Socket Cap Screw 5/16-18 x 1/2" Type 304 Stainless

$0.35

50 or more $0.29 ea.
500 or more $0.25 ea.

Flat Head Socket Cap Screw 5/16-18 x 5/8

Flat Head Socket Cap Screw 5/16-18 x 5/8" Type 304 Stainless

$0.37

50 or more $0.30 ea.
500 or more $0.27 ea.

Flat Head Socket Cap Screw 5/16-18 x 3/4

Flat Head Socket Cap Screw 5/16-18 x 3/4" Type 304 Stainless

$0.39

50 or more $0.30 ea.
500 or more $0.27 ea.
5000 or more $0.25 ea.

Flat Head Socket Cap Screw 5/16-18 x 1

Flat Head Socket Cap Screw 5/16-18 x 1" Type 304 Stainless

$0.41

50 or more $0.35 ea.
500 or more $0.29 ea.

Flat Head Socket Cap Screw 5/16-18 x 1" Type 316 Stainless

Flat Head Socket Cap Screw 5/16-18 x 1" Type 316 Stainless

$0.70

50 or more $0.60 ea.
500 or more $0.50 ea.

Flat Head Socket Cap Screw 5/16-18 x 1-1/4

Flat Head Socket Cap Screw 5/16-18 x 1-1/4" Type 304 Stainless

$0.45

50 or more $0.39 ea.
500 or more $0.35 ea.

Flat Head Socket Cap Screw 5/16-18 x 1-1/2

Flat Head Socket Cap Screw 5/16-18 x 1-1/2" Type 304 Stainless

$0.47

50 or more $0.45 ea.
500 or more $0.37 ea.

Flat Head Socket Cap Screw 5/16-18 x 1-3/4

Flat Head Socket Cap Screw 5/16-18 x 1-3/4" Type 304 Stainless

$0.55

50 or more $0.49 ea.
500 or more $0.45 ea.

Flat Head Socket Cap Screw 5/16-18 x 2

Flat Head Socket Cap Screw 5/16-18 x 2" Type 304 Stainless

$0.60

50 or more $0.55 ea.
500 or more $0.49 ea.

Flat Head Socket Cap Screw 5/16-18 x 2-1/4" Type 304 Stainless

Flat Head Socket Cap Screw 5/16-18 x 2-1/4" Type 304 Stainless

$0.75

50 or more $0.70 ea.
500 or more $0.68 ea.

Flat Head Socket Cap Screw 5/16-18 x 2-1/2

Flat Head Socket Cap Screw 5/16-18 x 2-1/2" Type 304 Stainless

$0.79

50 or more $0.78 ea.
500 or more $0.70 ea.

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