Thread Adapting Studs | McMaster-Carr

	System of Measurement System of Measurement

Inch

Metric

	Thread Size Thread Size

	Thread Type Thread Type

UNC

UNF

Metric

	Length Length

	Thread Length Thread Length

	Material Material

Steel

Stainless Steel

	Finish Finish

Black Oxide

Zinc Plated

	Screw Size Screw Size

	Thread Spacing Thread Spacing

Coarse

Fine

	Tensile Strength Tensile Strength

70,000 psi

150,000 psi

Not Rated

	Thread Fit Thread Fit

	Hardness Hardness

	Thread Pitch Thread Pitch

0.8 mm

1 mm

1.25 mm

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
Compliant

DFARS Specialty Metals
COTS-Exempt

	Drive Size Drive Size

143 Products

About Threaded Studs and Rods

Rod

Rod with Unthreaded Tip

A hex drive on one end allows these rods to be turned with a hex key for ease of installation. Use them to connect parts with coarse threads to parts with fine threads. They're high-strength black-oxide steel and corrosion resistant in dry environments.

Rods with an unthreaded tip thread into nuts more easily, reducing the chance of damaging threads.

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

Thread (A)		Thread (B)
Size	Lg.	Size	Lg.	Lg.	Unthreaded Tip Lg.	Drive Size	Tensile Strength, psi	Hardness		Each
Black-Oxide Alloy Steel
Threaded Tip
1/4"-20	3/8"	1/4"-28	7/16"	1"	__	3/32"	150,000	Rockwell C39	000000000	00000
1/4"-20	3/8"	1/4"-28	3/4"	1 1/4"	__	3/32"	150,000	Rockwell C39	000000000	0000
1/4"-20	3/8"	1/4"-28	1"	2"	__	3/32"	150,000	Rockwell C39	000000000	0000
1/4"-20	3/8"	1/4"-28	1"	3"	__	3/32"	150,000	Rockwell C39	000000000	0000
5/16"-18	3/8"	5/16"-24	7/16"	1"	__	1/8"	150,000	Rockwell C39	000000000	0000
5/16"-18	3/8"	5/16"-24	3/4"	1 1/4"	__	1/8"	150,000	Rockwell C39	000000000	0000
5/16"-18	1/2"	5/16"-24	1"	2"	__	1/8"	150,000	Rockwell C39	000000000	0000
5/16"-18	1/2"	5/16"-24	1"	3"	__	1/8"	150,000	Rockwell C39	000000000	0000
3/8"-16	3/8"	3/8"-24	7/16"	1"	__	5/32"	150,000	Rockwell C39	000000000	0000
3/8"-16	7/16"	3/8"-24	3/4"	1 1/4"	__	5/32"	150,000	Rockwell C39	000000000	0000
3/8"-16	5/8"	3/8"-24	1"	2"	__	5/32"	150,000	Rockwell C39	000000000	0000
3/8"-16	5/8"	3/8"-24	1"	3"	__	5/32"	150,000	Rockwell C39	000000000	0000
3/8"-16	5/8"	3/8"-24	1"	4"	__	5/32"	150,000	Rockwell C39	000000000	0000
7/16"-14	7/16"	7/16"-20	1"	2"	__	3/32"	150,000	Rockwell C39	000000000	0000
Unthreaded Tip
7/16"-14	1 1/2"	7/16"-20	1 1/8"	3 3/4"	3/8"	3/32"	150,000	Rockwell C39	000000000	00000
7/16"-14	1 1/2"	7/16"-20	1 1/8"	5 1/2"	3/8"	3/32"	150,000	Rockwell C39	000000000	00000
7/16"-14	1 1/2"	7/16"-20	1 1/8"	5 7/8"	3/8"	3/32"	150,000	Rockwell C39	000000000	00000
7/16"-14	1 1/2"	7/16"-20	1 1/8"	7"	3/8"	3/32"	150,000	Rockwell C39	000000000	00000
7/16"-14	1 1/2"	7/16"-20	1 1/8"	8"	3/8"	3/32"	150,000	Rockwell C39	000000000	00000

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

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	00000
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	00000
1/4"	3"	1/4"-20	2 1/2"	8"	Not Rated	Not Rated	5	000000000	00000
5/16"	7/8"	5/16"-18	5/8"	1 1/2"	Not Rated	Not Rated	10	000000000	00000
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
3/8"	1 1/2"	3/8"-16	1 1/2"	3"	Not Rated	Not Rated	5	000000000	00000
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	2 1/2"	8"	Not Rated	Not Rated	1	000000000	0000
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

Steel Wood Screw Threaded Studs

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	000000
No. 8	1"	8-32	3/4"	1 3/4"	Not Rated	Not Rated	25	000000000	00000
No. 8	1"	8-32	1"	2"	Not Rated	Not Rated	25	000000000	00000
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	25	000000000	00000
No. 10	1 1/2"	10-24	1 1/2"	3"	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	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	5	000000000	0000
5/16"	2"	5/16"-18	1 1/2"	3 1/2"	Not Rated	Not Rated	5	000000000	0000
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	5	000000000	00000
3/8"	3"	3/8"-16	1 1/2"	6"	Not Rated	Not Rated	5	000000000	00000
3/8"	3"	3/8"-16	2 1/2"	10"	Not Rated	Not Rated	1	000000000	00000
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	00000
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	00000
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	00000
5/16"	1 1/2"	5/16"-18	1"	2 1/2"	Not Rated	Not Rated	25	000000000	00000
5/16"	1 1/2"	5/16"-18	1 1/2"	3"	Not Rated	Not Rated	25	000000000	00000
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	00000
3/8"	2"	3/8"-16	2"	4"	Not Rated	Not Rated	10	000000000	00000
3/8"	3"	3/8"-16	1 3/8"	5"	Not Rated	Not Rated	10	000000000	00000
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

Wood-to-Wood Joining Studs

Also known as dowel screws, use these to join two pieces of wood.

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

Steel
Lg.	Thread Lg.	Tensile Strength	Hardness	Pkg. Qty.		Pkg.
3/16"
1 1/2"	3/4"	Not Rated	Rockwell B80	50	000000000	000000
2"	7/8"	Not Rated	Rockwell B80	50	000000000	00000
1/4"
1 1/2"	3/4"	Not Rated	Rockwell B80	50	000000000	00000
2"	7/8"	Not Rated	Rockwell B80	50	000000000	00000
2 1/2"	1 1/8"	Not Rated	Rockwell B80	50	000000000	00000
3"	1 3/8"	Not Rated	Rockwell B80	50	000000000	00000
3 1/2"	1 5/8"	Not Rated	Rockwell B80	25	000000000	00000
5/16"
2 1/2"	1 1/8"	Not Rated	Rockwell B80	25	000000000	00000
3"	1 3/8"	Not Rated	Rockwell B80	25	000000000	00000
4"	1 5/8"	Not Rated	Rockwell B80	25	000000000	00000
3/8"
2 1/2"	1 1/8"	Not Rated	Rockwell B80	10	000000000	0000
3"	1 3/8"	Not Rated	Rockwell B80	10	000000000	0000
4"	1 5/8"	Not Rated	Rockwell B80	10	000000000	00000

Left-Hand to Right-Hand Male Thread Adapters

Made from black-oxide steel, these adapters resist corrosion in dry environments. Thread length is the same on both ends.

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

Black-Oxide Steel
Lg.	Thread Lg.	Tensile Strength, psi	Hardness		Each
1/4"-20
1 1/2"	5/8"	70,000	Rockwell B67	000000000	00000
2"	1/2"	70,000	Rockwell B67	000000000	0000
2 1/2"	3/4"	70,000	Rockwell B67	000000000	0000
3"	3/4"	70,000	Rockwell B67	000000000	0000
4"	1"	70,000	Rockwell B67	000000000	0000
5/16"-18
2"	1/2"	70,000	Rockwell B67	000000000	0000
2 1/2"	3/4"	70,000	Rockwell B67	000000000	0000
3"	3/4"	70,000	Rockwell B67	000000000	0000
4"	1"	70,000	Rockwell B67	000000000	0000
3/8"-16
1 1/2"	5/8"	70,000	Rockwell B67	000000000	0000
2"	3/4"	70,000	Rockwell B67	000000000	0000
2 1/2"	3/4"	70,000	Rockwell B67	000000000	0000
3"	3/4"	70,000	Rockwell B67	000000000	0000
3 1/2"	1"	70,000	Rockwell B67	000000000	0000
4"	1"	70,000	Rockwell B67	000000000	0000
5"	1 1/4"	70,000	Rockwell B67	000000000	0000
6"	1 1/2"	70,000	Rockwell B67	000000000	0000
1/2"-13
1 3/4"	3/4"	70,000	Rockwell B67	000000000	0000
2"	3/4"	70,000	Rockwell B67	000000000	0000
3"	3/4"	70,000	Rockwell B67	000000000	0000
4"	1 1/4"	70,000	Rockwell B67	000000000	0000
5"	1 1/4"	70,000	Rockwell B67	000000000	0000
6"	1 1/2"	70,000	Rockwell B67	000000000	0000
8"	1 3/4"	70,000	Rockwell B67	000000000	0000
5/8"-11
2 1/2"	7/8"	70,000	Rockwell B67	000000000	0000
4"	1 1/4"	70,000	Rockwell B67	000000000	0000
6"	1 1/2"	70,000	Rockwell B67	000000000	0000
8"	2"	70,000	Rockwell B67	000000000	0000
3/4"-10
4"	1 3/4"	70,000	Rockwell B67	000000000	0000
5"	1 3/4"	70,000	Rockwell B67	000000000	0000
6"	1 3/4"	70,000	Rockwell B67	000000000	0000
8"	2"	70,000	Rockwell B67	000000000	0000

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About Threaded Studs and Rods

Hex Drive Threaded Rods

Metric Stainless Steel Wood Screw Threaded Studs

Stainless Steel Wood Screw Threaded Studs

Steel Wood Screw Threaded Studs

Wood-to-Wood Joining Studs

Left-Hand to Right-Hand Male Thread Adapters