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Round Head Machine Screws

Machine screws are a type of hardware typically used for joining wood or metal together. The screw contains a long metal shaft with a head at one end and a threaded shaft that is inserted through the hole in the material and then tightened to secure it into place. The difference between a machine screw and a regular bolt is that the threads of the machine screw are closer together which means that there is less space for error when assembling them.

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Carriage Bolts - A307 Grade A Hot-Dip Galvanized & Zinc Plated - 18-8 Stainless Steel
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#6-32 x 3
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#6-32 x 3" Stainless Steel Slotted Round Head Machine Screw 18-8

6C300MSRS

$17.25 /Box of 100
Only $0.17 Each

#10-24 x 3
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#10-24 x 3" Zinc Plated Slotted Round Head Machine Screw

10C300MSRZ

$5.43 /Box of 100
Only $0.05 Each

5/16
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5/16"-18 x 4" Zinc Plated Slotted Round Head Machine Screw

31C400MSRZ

$39.51 /Box of 100
Only $0.40 Each

1/4
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1/4"-20 x 1-3/4" Stainless Steel Slotted Round Head Machine Screw 18-8

25C175MSRS

$40.62 /Box of 100
Only $0.41 Each

1/4
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1/4"-20 x 1-3/4" Stainless Steel Phillips Round Head Machine Screw 18-8

25C175MXRS

$42.00 /Box of 100
Only $0.42 Each

#8-32 x 1/2
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#8-32 x 1/2" Zinc Plated Slotted Round Head Machine Screw

8C50MSRZ

$2.86 /Box of 100
Only $0.03 Each

1/4
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1/4"-20 x 3/8" Zinc Plated Slotted Round Head Machine Screw

25C37MSRZ

$9.43 /Box of 100
Only $0.09 Each

#8-32 x 1/2
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#8-32 x 1/2" Zinc Plated Phillips Round Head Machine Screw

8C50MXRZ

$2.66 /Box of 100
Only $0.03 Each

1/4
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1/4"-20 x 1-3/4" Brass Slotted Round Head Machine Screw

25C175MSRB

$64.63 /Box of 100
Only $0.65 Each

1/4
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1/4"-20 x 1-1/4" Stainless Steel Slotted Round Head Machine Screw 18-8

25C125MSRS

$25.50 /Box of 100
Only $0.26 Each

3/8
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3/8"-16 x 1/2" Zinc Plated Slotted Round Head Machine Screw

37C50MSRZ

$13.80 /Box of 100
Only $0.14 Each

1/4
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1/4"-20 x 4" Zinc Plated Slotted Round Head Machine Screw

25C400MSRZ

$25.71 /Box of 100
Only $0.26 Each

#8-32 x 2
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#8-32 x 2" Stainless Steel Slotted Round Head Machine Screw 18-8

8C200MSRS

$16.65 /Box of 100
Only $0.17 Each

1/4
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1/4"-20 x 1" Zinc Plated Phillips Round Head Machine Screw

25C100MXRZ

$12.00 /Box of 100
Only $0.12 Each

#10-32 x 1
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#10-32 x 1" Stainless Steel Slotted Round Head Machine Screw 18-8

10F100MSRS

$12.00 /Box of 100
Only $0.12 Each

3/8
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3/8"-16 x 1-1/4" Stainless Steel Slotted Round Head Machine Screw 18-8

37C125MSRS

$21.61 /Box of 50
Only $0.43 Each

#8-32 x 1-1/4
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#8-32 x 1-1/4" Stainless Steel Slotted Round Head Machine Screw 18-8

8C125MSRS

$9.00 /Box of 100
Only $0.09 Each

#10-32 x 2
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#10-32 x 2" Zinc Plated Slotted Round Head Machine Screw

10F200MSRZ

$2.20 /Box of 100
Only $0.02 Each

#10-24 x 1-1/4
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#10-24 x 1-1/4" Zinc Plated Phillips Round Head Machine Screw

10C125MXRZ

$7.06 /Box of 100
Only $0.07 Each

#10-24 x 1/2
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#10-24 x 1/2" Brass Slotted Round Head Machine Screw

10C50MSRB

$26.64 /Box of 100
Only $0.27 Each

5/16
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5/16"-18 x 3" Stainless Steel Slotted Round Head Machine Screw 18-8

31C300MSRS

$78.00 /Box of 100
Only $0.78 Each

5/16
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5/16"-18 x 3/4" Zinc Plated Slotted Round Head Machine Screw

31C75MSRZ

$12.17 /Box of 100
Only $0.12 Each

5/16
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5/16"-18 x 2-1/2" Slotted Round Head Machine Screw

31C250MSRI

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#10-32 x 3/8
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#10-32 x 3/8" Zinc Plated Slotted Round Head Machine Screw

10F37MSRZ

$11.00 /Box of 100
Only $0.11 Each

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Big Timber "BTX" Bronze Flat Head Screws - ACQ Compatible - Dr J TER 1911-01 - Star Drive - Bronze Coating