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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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Big Timber BTX Exterior Grade Construction Screws
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1/4
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1/4"-20 x 2-1/2" Brass Slotted Round Head Machine Screw

25C250MSRB

$71.16 /Box of 100
Only $0.71 Each

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

25C37MSRB

$10.00 /Box of 100
Only $0.10 Each

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1/4"-20 x 2" Stainless Steel Phillips Round Head Machine Screw 18-8

25C200MXRS

$54.00 /Box of 100
Only $0.54 Each

#10-24 x 1-1/2
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#10-24 x 1-1/2" Zinc Plated Phillips Round Head Machine Screw

10C150MXRZ

$13.17 /Box of 100
Only $0.13 Each

#12-24 x 1
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#12-24 x 1" Zinc Plated Slotted Round Head Machine Screw

12C100MSRZ

$10.01 /Box of 100
Only $0.10 Each

#6-32 x 1
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#6-32 x 1" Zinc Plated Phillips Round Head Machine Screw

6C100MXRZ

$5.18 /Box of 100
Only $0.05 Each

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

10C125MSRZ

$2.02 /Box of 100
Only $0.02 Each

5/16
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5/16"-18 x 7/8" Zinc Plated Slotted Round Head Machine Screw

31C87MSRZ

$13.28 /Box of 100
Only $0.13 Each

#4-40 x 5/16
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#4-40 x 5/16" Zinc Plated Phillips Round Head Machine Screw

4C31MXRZ

$5.01 /Box of 100
Only $0.05 Each

#6-32 x 1/2
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#6-32 x 1/2" Zinc Plated Slotted Round Head Machine Screw

6C50MSRZ

$2.77 /Box of 100
Only $0.03 Each

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

25C75MXRS

$14.64 /Box of 100
Only $0.15 Each

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

31C75MSRZ

$15.12 /Box of 100
Only $0.15 Each

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

8C150MSRB

$26.13 /Box of 100
Only $0.26 Each

#8-32 x 1-1/2
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#8-32 x 1-1/2" Stainless Steel Slotted Round Head Machine Screw 18-8

8C150MSRS

$4.95 /Box of 100
Only $0.05 Each

#10-32 x 1-1/2
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#10-32 x 1-1/2" Stainless Steel Slotted Round Head Machine Screw 18-8

10F150MSRS

$13.20 /Box of 100
Only $0.13 Each

#6-32 x 3/4
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#6-32 x 3/4" Zinc Plated Slotted Round Head Machine Screw

6C75MSRZ

$2.52 /Box of 100
Only $0.03 Each

#10-32 x 5/8
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#10-32 x 5/8" Brass Slotted Round Head Machine Screw

10F62MSRB

$22.75 /Box of 100
Only $0.23 Each

#6-32 x 1-1/4
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#6-32 x 1-1/4" Stainless Steel Slotted Round Head Machine Screw 18-8

6C125MSRS

$3.00 /Box of 100
Only $0.03 Each

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

25C300MSRZ

$7.49 /Box of 100
Only $0.07 Each

#8-32 x 3/4
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#8-32 x 3/4" Stainless Steel Slotted Round Head Machine Screw 18-8

8C75MSRS

$5.94 /Box of 100
Only $0.06 Each

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

37C400MSRS

$48.00 /Box of 50
Only $0.96 Each

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1/4"-20 x 2-1/2" Stainless Steel Phillips Round Head Machine Screw 18-8

25C250MXRS

$60.00 /Box of 100
Only $0.60 Each

#6-32 x 3/4
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#6-32 x 3/4" Stainless Steel Slotted Round Head Machine Screw 18-8

6C75MSRS

$6.30 /Box of 100
Only $0.06 Each

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

37C300MSRS

$34.50 /Box of 50
Only $0.69 Each

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