Breadboard Screws | McMaster-Carr

These studs are also known as hanger bolts—use them to hang, mount, and fasten parts to wood structures. Install with a stud driver or create wrench flats by threading two nuts onto the stud and jamming them together.

Black-oxide steel studs are mildly corrosion resistant in dry environments.

Zinc-plated steel studs resist corrosion in wet environments.

For technical drawings and 3-D models, click on a part number.

(A)		(B)
Screw Size	Thread Lg.	Thread Size	Thread Lg.	Lg.	Tensile Strength	Hardness	Pkg. Qty.		Pkg.
Black-Oxide Steel
No. 8	7/8"	8-32	5/8"	1 1/2"	Not Rated	Not Rated	50	000000000	00000
No. 8	1"	8-32	3/4"	1 3/4"	Not Rated	Not Rated	50	000000000	0000
No. 8	1"	8-32	1"	2"	Not Rated	Not Rated	50	000000000	0000
No. 10	7/8"	10-24	5/8"	1 1/2"	Not Rated	Not Rated	50	000000000	0000
No. 10	1"	10-24	1"	2"	Not Rated	Not Rated	50	000000000	0000
No. 10	1 1/2"	10-24	1"	2 1/2"	Not Rated	Not Rated	50	000000000	0000
No. 10	1 1/2"	10-24	1 1/2"	3"	Not Rated	Not Rated	25	000000000	0000
1/4"	1"	1/4"-20	1"	2"	Not Rated	Not Rated	25	000000000	0000
1/4"	1 1/2"	1/4"-20	1"	2 1/2"	Not Rated	Not Rated	25	000000000	0000
1/4"	1 1/2"	1/4"-20	1 1/2"	3"	Not Rated	Not Rated	25	000000000	0000
5/16"	1 1/2"	5/16"-18	1"	2 1/2"	Not Rated	Not Rated	25	000000000	0000
5/16"	1 1/2"	5/16"-18	1 1/2"	3"	Not Rated	Not Rated	10	000000000	0000
5/16"	2"	5/16"-18	1 1/2"	3 1/2"	Not Rated	Not Rated	10	000000000	0000
3/8"	1 1/2"	3/8"-16	1 1/2"	3"	Not Rated	Not Rated	10	000000000	0000
3/8"	2"	3/8"-16	1 1/2"	3 1/2"	Not Rated	Not Rated	10	000000000	0000
3/8"	2"	3/8"-16	2"	4"	Not Rated	Not Rated	10	000000000	0000
3/8"	3"	3/8"-16	1 3/8"	6"	Not Rated	Not Rated	5	000000000	0000
3/8"	3"	3/8"-16	1 1/2"	5"	Not Rated	Not Rated	5	000000000	0000
3/8"	3"	3/8"-16	2 1/2"	10"	Not Rated	Not Rated	1	000000000	0000
Zinc-Plated Steel
No. 8	7/8"	8-32	5/8"	1 1/2"	Not Rated	Not Rated	100	000000000	0000
No. 8	1"	8-32	3/4"	1 3/4"	Not Rated	Not Rated	100	000000000	0000
No. 8	1"	8-32	1"	2"	Not Rated	Not Rated	100	000000000	0000
No. 10	7/8"	10-24	5/8"	1 1/2"	Not Rated	Not Rated	100	000000000	00000
No. 10	1"	10-24	1"	2"	Not Rated	Not Rated	50	000000000	0000
No. 10	1 1/2"	10-24	1"	2 1/2"	Not Rated	Not Rated	50	000000000	00000
No. 10	1 1/2"	10-24	1 1/2"	3"	Not Rated	Not Rated	50	000000000	00000
1/4"	1"	1/4"-20	1"	2"	Not Rated	Not Rated	50	000000000	00000
1/4"	1 1/2"	1/4"-20	1"	2 1/2"	Not Rated	Not Rated	50	000000000	00000
1/4"	1 1/2"	1/4"-20	1 1/2"	3"	Not Rated	Not Rated	25	000000000	0000
5/16"	1 1/2"	5/16"-18	1"	2 1/2"	Not Rated	Not Rated	25	000000000	0000
5/16"	1 1/2"	5/16"-18	1 1/2"	3"	Not Rated	Not Rated	25	000000000	0000
5/16"	2"	5/16"-18	1 1/2"	3 1/2"	Not Rated	Not Rated	25	000000000	00000
3/8"	1 1/2"	3/8"-16	1 1/2"	3"	Not Rated	Not Rated	25	000000000	00000
3/8"	2"	3/8"-16	1 1/2"	3 1/2"	Not Rated	Not Rated	10	000000000	0000
3/8"	2"	3/8"-16	2"	4"	Not Rated	Not Rated	10	000000000	0000
3/8"	3"	3/8"-16	1 3/8"	5"	Not Rated	Not Rated	10	000000000	0000
3/8"	3"	3/8"-16	1 1/2"	6"	Not Rated	Not Rated	10	000000000	00000
3/8"	3"	3/8"-16	2 1/2"	10"	Not Rated	Not Rated	1	000000000	0000
3/8"	3"	3/8"-16	2 1/2"	12"	Not Rated	Not Rated	1	000000000	0000
1/2"	3"	1/2"-13	2 1/2"	6"	Not Rated	Not Rated	1	000000000	0000
1/2"	3"	1/2"-13	2 1/2"	12"	Not Rated	Not Rated	1	000000000	0000

Stainless Steel Wood Screw Threaded Studs

18-8 stainless steel studs have good chemical resistance and may be mildly magnetic. Also known as hanger bolts, use them to hang, mount, and fasten parts to wood structures. Install with a stud driver or create wrench flats by threading two nuts onto the stud and jamming them together.

For technical drawings and 3-D models, click on a part number.

(A)		(B)
Screw Size	Thread Lg.	Thread Size	Thread Lg.	Lg.	Tensile Strength	Hardness	Pkg. Qty.		Pkg.
18-8 Stainless Steel
No. 10	5/8"	10-24	3/8"	1"	Not Rated	Not Rated	25	000000000	000000
No. 10	7/8"	10-24	5/8"	1 1/2"	Not Rated	Not Rated	25	000000000	00000
No. 10	1"	10-24	1"	2"	Not Rated	Not Rated	25	000000000	00000
No. 10	1 1/2"	10-24	1"	2 1/2"	Not Rated	Not Rated	10	000000000	0000
No. 10	1 1/2"	10-24	1 1/2"	3"	Not Rated	Not Rated	10	000000000	0000
1/4"	7/8"	1/4"-20	5/8"	1 1/2"	Not Rated	Not Rated	10	000000000	0000
1/4"	1"	1/4"-20	1"	2"	Not Rated	Not Rated	10	000000000	0000
1/4"	1 1/2"	1/4"-20	1"	2 1/2"	Not Rated	Not Rated	10	000000000	0000
1/4"	1 1/2"	1/4"-20	1 1/2"	3"	Not Rated	Not Rated	10	000000000	0000
1/4"	2"	1/4"-20	1 1/2"	3 1/2"	Not Rated	Not Rated	10	000000000	0000
1/4"	2"	1/4"-20	2"	4"	Not Rated	Not Rated	10	000000000	00000
1/4"	3"	1/4"-20	1 3/8"	5"	Not Rated	Not Rated	5	000000000	0000
1/4"	3"	1/4"-20	1 1/2"	4 1/2"	Not Rated	Not Rated	10	000000000	00000
1/4"	3"	1/4"-20	1 1/2"	6"	Not Rated	Not Rated	5	000000000	0000
1/4"	3"	1/4"-20	2 1/2"	8"	Not Rated	Not Rated	5	000000000	00000
3/8"	1 1/2"	3/8"-16	1 1/2"	3"	Not Rated	Not Rated	5	000000000	0000
3/8"	2"	3/8"-16	1 1/2"	3 1/2"	Not Rated	Not Rated	5	000000000	00000
3/8"	2"	3/8"-16	2"	4"	Not Rated	Not Rated	5	000000000	00000
3/8"	3"	3/8"-16	1 3/8"	5"	Not Rated	Not Rated	1	000000000	0000
3/8"	3"	3/8"-16	1 1/2"	6"	Not Rated	Not Rated	1	000000000	0000
3/8"	3"	3/8"-16	1 1/2"	8"	Not Rated	Not Rated	1	000000000	0000
5/16"	7/8"	5/16"-18	5/8"	1 1/2"	Not Rated	Not Rated	10	000000000	0000
5/16"	1"	5/16"-18	1"	2"	Not Rated	Not Rated	10	000000000	00000
5/16"	1 1/2"	5/16"-18	1"	2 1/2"	Not Rated	Not Rated	10	000000000	00000
5/16"	1 1/2"	5/16"-18	1 1/2"	3"	Not Rated	Not Rated	10	000000000	00000
5/16"	2"	5/16"-18	1 1/2"	3 1/2"	Not Rated	Not Rated	10	000000000	00000
5/16"	2"	5/16"-18	2"	4"	Not Rated	Not Rated	5	000000000	0000
5/16"	3"	5/16"-18	1 1/4"	5"	Not Rated	Not Rated	5	000000000	00000
5/16"	3"	5/16"-18	1 1/2"	6"	Not Rated	Not Rated	5	000000000	00000
1/2"	2"	1/2"-13	1"	3"	Not Rated	Not Rated	1	000000000	0000
1/2"	2"	1/2"-13	1 1/2"	3 1/2"	Not Rated	Not Rated	1	000000000	0000
1/2"	2"	1/2"-13	2"	4"	Not Rated	Not Rated	1	000000000	0000
1/2"	3"	1/2"-13	2"	5"	Not Rated	Not Rated	1	000000000	0000
1/2"	3"	1/2"-13	2 1/2"	6"	Not Rated	Not Rated	1	000000000	0000
1/2"	3"	1/2"-13	2 1/2"	8"	Not Rated	Not Rated	1	000000000	0000

Metric Stainless Steel Wood Screw Threaded Studs

316 stainless steel studs have excellent resistance to chemicals and salt water and may be mildly magnetic. Also known as hanger bolts, use them to hang, mount, and fasten parts to wood structures. Install with a stud driver or create wrench flats by threading two nuts onto the stud and jamming them together.

For technical drawings and 3-D models, click on a part number.

(A)		(B)
Screw Size	Thread Lg., mm	Thread Size	Thread Pitch, mm	Thread Lg., mm	Lg., mm	Tensile Strength	Hardness	Pkg. Qty.		Pkg.
316 Stainless Steel
M5	30	M5	0.8	20	50	Not Rated	Not Rated	1	000000000	00000
M6	40	M6	1	30	70	Not Rated	Not Rated	1	000000000	0000
M8	60	M8	1.25	40	100	Not Rated	Not Rated	1	000000000	00000

Hex Drive Wood Screw Threaded Studs

Turn these studs with a hex key for ease of installation. Also known as hanger bolts, use them to suspend electrical wiring from wood and to hang, mount, and fasten parts to wood structures.

(A)		(B)
Screw Size	Thread Lg.	Thread Size	Thread Lg.	Lg.	Drive Size	Tensile Strength	Hardness	Pkg. Qty.		Pkg.
Steel
No. 8	1 3/16"	5/16"-18	5/16"	1 1/2"	5/32"	Not Rated	Not Rated	1	000000000	00000

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