Skip to content

Your cart is empty

Continue shopping

Have an account?

Log in to check out faster.

Your cart

Loading...

Estimated total

0.00 CAD

Taxes, Discounts and shipping calculated at checkout

Language

English
Français

Bolts
Nuts
Washers
Socket Screws
Contact Us
About Us

Country/region

Canada CAD $
United States USD $

Language

English
Français

Bolts
Nuts
Washers
Socket Screws
Contact Us
About Us

Search

Collection: 3-1/2 Length

Sort by:

102 of 318 products

Sort

Sort

102 of 318 products

Sort by:

Remove all

102 of 318 products

Button Head Cap Screw Full Thread Black-Oxide Alloy Steel 1/2-13 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Button Head Cap Screw Full Thread Black-Oxide Alloy Steel 1/2-13 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Regular price 3.73 $ CAD

Regular price Sale price 3.73 $ CAD
Unit price per
Button Head Cap Screw Full Thread Black-Oxide Alloy Steel 1/4-20 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Button Head Cap Screw Full Thread Black-Oxide Alloy Steel 1/4-20 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Regular price 1.05 $ CAD

Regular price Sale price 1.05 $ CAD
Unit price per
Button Head Cap Screw Full Thread Black-Oxide Alloy Steel 3/8-16 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Button Head Cap Screw Full Thread Black-Oxide Alloy Steel 3/8-16 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Regular price 2.02 $ CAD

Regular price Sale price 2.02 $ CAD
Unit price per
Button Head Cap Screw Full Thread Black-Oxide Alloy Steel 5/16-18 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Button Head Cap Screw Full Thread Black-Oxide Alloy Steel 5/16-18 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Regular price 1.69 $ CAD

Regular price Sale price 1.69 $ CAD
Unit price per
Button Head Cap Screw Full thread Stainless Steel 3/8-16 * 3-1/2" [Cup Point] [Allen Drive]

Button Head Cap Screw Full thread Stainless Steel 3/8-16 * 3-1/2" [Cup Point] [Allen Drive]

Regular price 7.06 $ CAD

Regular price Sale price 7.06 $ CAD
Unit price per
Button Head Cap Screw Full thread Stainless Steel 5/16-18 * 3-1/2" [Cup Point] [Allen Drive]

Button Head Cap Screw Full thread Stainless Steel 5/16-18 * 3-1/2" [Cup Point] [Allen Drive]

Regular price 2.49 $ CAD

Regular price Sale price 2.49 $ CAD
Unit price per
Flat Head Cap Screw Black Steel 1/2-13 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Flat Head Cap Screw Black Steel 1/2-13 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Regular price 3.71 $ CAD

Regular price Sale price 3.71 $ CAD
Unit price per
Flat Head Cap Screw Black Steel 1/4-20 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Flat Head Cap Screw Black Steel 1/4-20 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Regular price 0.84 $ CAD

Regular price Sale price 0.84 $ CAD
Unit price per
Flat Head Cap Screw Black Steel 3/4-10 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Flat Head Cap Screw Black Steel 3/4-10 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Regular price 10.62 $ CAD

Regular price Sale price 10.62 $ CAD
Unit price per
Flat Head Cap Screw Black Steel 3/8-16 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Sale

Flat Head Cap Screw Black Steel 3/8-16 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Regular price 1.54 $ CAD

Regular price ~~2.67 $ CAD~~ Sale price 1.54 $ CAD
Unit price per

Sale
Flat Head Cap Screw Black Steel 5/16-18 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Flat Head Cap Screw Black Steel 5/16-18 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Regular price 1.38 $ CAD

Regular price Sale price 1.38 $ CAD
Unit price per
Flat Head Cap Screw Black Steel 5/8-11 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Sale

Flat Head Cap Screw Black Steel 5/8-11 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Regular price 4.95 $ CAD

Regular price ~~7.57 $ CAD~~ Sale price 4.95 $ CAD
Unit price per

Sale
Flat Head Cap Screw Black Steel 7/16-14 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Flat Head Cap Screw Black Steel 7/16-14 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Regular price 5.08 $ CAD

Regular price Sale price 5.08 $ CAD
Unit price per
Flat Head Cap Screw Fine Thread Black Steel 1/2-20 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Flat Head Cap Screw Fine Thread Black Steel 1/2-20 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Regular price 3.87 $ CAD

Regular price Sale price 3.87 $ CAD
Unit price per
Flat Head Cap Screw Fine Thread Black Steel 1/4-28 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Flat Head Cap Screw Fine Thread Black Steel 1/4-28 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Regular price 2.13 $ CAD

Regular price Sale price 2.13 $ CAD
Unit price per
Flat Head Cap Screw Fine Thread Black Steel 3/8-24 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Flat Head Cap Screw Fine Thread Black Steel 3/8-24 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Regular price 3.63 $ CAD

Regular price Sale price 3.63 $ CAD
Unit price per
Flat Head Cap Screw Fine Thread Black Steel 5/16-24 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Flat Head Cap Screw Fine Thread Black Steel 5/16-24 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Regular price 1.90 $ CAD

Regular price Sale price 1.90 $ CAD
Unit price per
Flat Head Cap Screw Full Thread Stainless Steel 1/4-20 * 3-1/2" [Cup Point] [Allen Drive]

Flat Head Cap Screw Full Thread Stainless Steel 1/4-20 * 3-1/2" [Cup Point] [Allen Drive]

Regular price From 1.02 $ CAD

Regular price Sale price From 1.02 $ CAD
Unit price per
Flat Head Cap Screw Full Thread Stainless Steel 5/8-11 * 3-1/2" [Cup Point] [Allen Drive]

Flat Head Cap Screw Full Thread Stainless Steel 5/8-11 * 3-1/2" [Cup Point] [Allen Drive]

Regular price 21.76 $ CAD

Regular price Sale price 21.76 $ CAD
Unit price per
Set Screw Fine & Full Thread Black Steel 7/16-20 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Set Screw Fine & Full Thread Black Steel 7/16-20 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Regular price 6.24 $ CAD

Regular price Sale price 6.24 $ CAD
Unit price per
Set Screw Full Thread 304 Stainless Steel 1/2-13 * 3-1/2" [Cup Point] [Allen Drive]

Sale

Set Screw Full Thread 304 Stainless Steel 1/2-13 * 3-1/2" [Cup Point] [Allen Drive]

Regular price From 9.01 $ CAD

Regular price ~~16.57 $ CAD~~ Sale price From 9.01 $ CAD
Unit price per

Sale
Set screw Full Thread Black Oxyde Alloy Steel 1-1/2-6 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Set screw Full Thread Black Oxyde Alloy Steel 1-1/2-6 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Regular price From 58.05 $ CAD

Regular price Sale price From 58.05 $ CAD
Unit price per
Set screw Full Thread Black Oxyde Alloy Steel 1-1/4-7 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Set screw Full Thread Black Oxyde Alloy Steel 1-1/4-7 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Regular price From 46.54 $ CAD

Regular price Sale price From 46.54 $ CAD
Unit price per
Set screw Full Thread Black Oxyde Alloy Steel 1-8 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Set screw Full Thread Black Oxyde Alloy Steel 1-8 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Regular price From 26.54 $ CAD

Regular price Sale price From 26.54 $ CAD
Unit price per
Set screw Full Thread Black Oxyde Alloy Steel 1/2-13 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Set screw Full Thread Black Oxyde Alloy Steel 1/2-13 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Regular price From 3.84 $ CAD

Regular price Sale price From 3.84 $ CAD
Unit price per
Set screw Full Thread Black Oxyde Alloy Steel 3/4-10 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Set screw Full Thread Black Oxyde Alloy Steel 3/4-10 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Regular price From 9.21 $ CAD

Regular price Sale price From 9.21 $ CAD
Unit price per
Set screw Full Thread Black Oxyde Alloy Steel 3/8-16 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Set screw Full Thread Black Oxyde Alloy Steel 3/8-16 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Regular price From 2.37 $ CAD

Regular price Sale price From 2.37 $ CAD
Unit price per
Set screw Full Thread Black Oxyde Alloy Steel 5/16-18 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Set screw Full Thread Black Oxyde Alloy Steel 5/16-18 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Regular price From 7.31 $ CAD

Regular price Sale price From 7.31 $ CAD
Unit price per
Set screw Full Thread Black Oxyde Alloy Steel 7/8-9 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Set screw Full Thread Black Oxyde Alloy Steel 7/8-9 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Regular price From 21.02 $ CAD

Regular price Sale price From 21.02 $ CAD
Unit price per
Shoulder Screw Black Steel 1/2-13 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Shoulder Screw Black Steel 1/2-13 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Regular price 9.31 $ CAD

Regular price Sale price 9.31 $ CAD
Unit price per
Shoulder Screw Black Steel 1/4-20 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Shoulder Screw Black Steel 1/4-20 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Regular price 6.23 $ CAD

Regular price Sale price 6.23 $ CAD
Unit price per
Shoulder Screw Black Steel 10-24 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Shoulder Screw Black Steel 10-24 * 3-1/2" Grade 8 [Cup Point] [Allen Drive]

Regular price 5.27 $ CAD

Regular price Sale price 5.27 $ CAD
Unit price per

1
2
3
4

Filter

Refine

Thread Type

Coarse Thread [UNC]
Fine Thread [UNF]

Threading

Fully Threaded
Partially Threaded

Imperial Thread (Inch)

8-32
10-24
10-32
1/4-20
1/4-28
5/16-18
5/16-24
3/8-16
3/8-24
7/16-14
7/16-20
1/2-13
1/2-20
9/16-12
5/8-11
5/8-18
3/4-10
3/4-16
7/8-9
1-8
1-14
1-1/8-7
1-1/8-12
1-1/4-7
1-1/4-12
1-3/8-6
1-1/2-6
1-1/2-12
1-3/4-5

Pipe thread (Inch)

1-3/4-5

British Thread (Inch)

1/4-20
1/4-28
5/16-18
3/8-16
7/16-14
9/16-12
5/8-11
3/4-10
7/8-9
1-8
1-1/8-7
1-1/4-7
1-1/2-6
1-3/4-5

Imperial Length (Inch)

3-1/2 Length

Categories

Pressure screw

System of Measurement

Imperial (Inch)

MATERIAL & PLATING

Black Oxide
Stainless Steel
Steel

Stainless Steel Grade

316 Stainless Steel

Grade

*Grade* 8

Shape

Square

Fasteners Type

Anti-Thief Screw
Button Head Cap Screw
Flat Head Cap Screw
Set Screw
Shoulder Screw
Socket Head Cap Screw
Square Screw
Square

Point Type

Cup

Drive

Allen
Allen Pin-In
Square

Head

Square

Country/region

Canada CAD $
United States USD $

Language

English
Français

Payment methods

© 2026, Les Attaches RJM

Choosing a selection results in a full page refresh.
Opens in a new window.