ASTM A193 Acme Threaded Rods

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System of Measurement

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Thread Direction

Fastener Strength Grade/Class

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Thread Fit

Travel Distance per Turn

Number of Thread Starts

Hardness

Specifications Met

Speed Ratio

REACH Compliance

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200 Products

Selecting Compatible Lead Screws and Nuts

Found in hand-powered clamps, vises, grates, doors, and work tables, lead screws and nuts have broad, square threads that are well suited for quick assembly, high clamping forces, and lifting and lowering heavy objects. To ensure compatibility, please select components that have the same thread direction, thread size, and number of thread starts.

Alloy steel components are harder and stronger than carbon steel components. 316 stainless steel components have excellent corrosion resistance.

Travel distance per turn, also known as screw lead, is the distance a nut or handle moves with one revolution of the lead screw.

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

Lead Screws—Right-Hand Threaded

Alloy Steel
Thread Size	Lg.	No. of Thread Starts	Speed Ratio	Travel Distance per Turn	Thread Fit	Fastener Strength Grade/Class	Hardness	Tensile Strength, psi	Specifications Met		Each
1/4"-16	6"	1	1:1	0.063"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1/4"-16	12"	1	1:1	0.063"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
1/4"-16	3 ft.	1	1:1	0.063"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
1/4"-16	6 ft.	1	1:1	0.063"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
3/8"-8	12"	1	1:1	0.125"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
3/8"-8	3 ft.	1	1:1	0.125"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
3/8"-8	6 ft.	1	1:1	0.125"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
3/8"-10	12"	1	1:1	0.1"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
3/8"-10	3 ft.	1	1:1	0.1"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
3/8"-10	6 ft.	1	1:1	0.1"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
3/8"-12	6"	1	1:1	0.083"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
3/8"-12	12"	1	1:1	0.083"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
3/8"-12	2 ft.	1	1:1	0.083"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
3/8"-12	3 ft.	1	1:1	0.083"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
3/8"-12	6 ft.	1	1:1	0.083"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
3/8"-12	12 ft.	1	1:1	0.083"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1/2"-8	12"	1	1:1	0.125"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
1/2"-8	3 ft.	1	1:1	0.125"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
1/2"-8	6 ft.	1	1:1	0.125"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1/2"-10	6"	1	1:1	0.1"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
1/2"-10	8"	1	1:1	0.1"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
1/2"-10	10"	1	1:1	0.1"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
1/2"-10	12"	1	1:1	0.1"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
1/2"-10	2 ft.	1	1:1	0.1"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
1/2"-10	3 ft.	1	1:1	0.1"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
1/2"-10	4 ft.	1	1:1	0.1"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
1/2"-10	6 ft.	1	1:1	0.1"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
1/2"-10	8 ft.	1	1:1	0.1"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1/2"-10	12 ft.	1	1:1	0.1"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
5/8"-6	12"	1	1:1	0.167"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
5/8"-6	3 ft.	1	1:1	0.167"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
5/8"-6	6 ft.	1	1:1	0.167"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
5/8"-8	6"	1	1:1	0.125"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
5/8"-8	12"	1	1:1	0.125"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
5/8"-8	2 ft.	1	1:1	0.125"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
5/8"-8	3 ft.	1	1:1	0.125"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
5/8"-8	4 ft.	1	1:1	0.125"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
5/8"-8	6 ft.	1	1:1	0.125"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
5/8"-8	8 ft.	1	1:1	0.125"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
5/8"-8	12 ft.	1	1:1	0.125"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
3/4"-5	12"	1	1:1	0.2"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
3/4"-5	3 ft.	1	1:1	0.2"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
3/4"-5	6 ft.	1	1:1	0.2"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
3/4"-5	12 ft.	1	1:1	0.2"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
3/4"-6	6"	1	1:1	0.167"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
3/4"-6	12"	1	1:1	0.167"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
3/4"-6	2 ft.	1	1:1	0.167"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
3/4"-6	3 ft.	1	1:1	0.167"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
3/4"-6	4 ft.	1	1:1	0.167"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
3/4"-6	6 ft.	1	1:1	0.167"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
3/4"-6	8 ft.	1	1:1	0.167"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
3/4"-6	12 ft.	1	1:1	0.167"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
3/4"-8	12"	1	1:1	0.125"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
3/4"-8	3 ft.	1	1:1	0.125"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
3/4"-8	6 ft.	1	1:1	0.125"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
7/8"-6	12"	1	1:1	0.167"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
7/8"-6	3 ft.	1	1:1	0.167"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
7/8"-6	6 ft.	1	1:1	0.167"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1"-4	12"	1	1:1	0.25"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
1"-4	3 ft.	1	1:1	0.25"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1"-4	6 ft.	1	1:1	0.25"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1"-5	6"	1	1:1	0.2"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
1"-5	12"	1	1:1	0.2"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
1"-5	2 ft.	1	1:1	0.2"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
1"-5	3 ft.	1	1:1	0.2"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1"-5	4 ft.	1	1:1	0.2"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1"-5	6 ft.	1	1:1	0.2"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1"-5	8 ft.	1	1:1	0.2"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1"-5	12 ft.	1	1:1	0.2"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1"-6	12"	1	1:1	0.167"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
1"-6	3 ft.	1	1:1	0.167"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1"-6	6 ft.	1	1:1	0.167"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1"-6	12 ft.	1	1:1	0.167"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1"-8	12"	1	1:1	0.125"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
1"-8	3 ft.	1	1:1	0.125"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1"-8	6 ft.	1	1:1	0.125"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1"-10	12"	1	1:1	0.1"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
1"-10	3 ft.	1	1:1	0.1"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1"-10	6 ft.	1	1:1	0.1"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1"-10	12 ft.	1	1:1	0.1"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1 1/8"-5	12"	1	1:1	0.2"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
1 1/8"-5	3 ft.	1	1:1	0.2"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1 1/8"-5	6 ft.	1	1:1	0.2"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1 1/4"-4	12"	1	1:1	0.25"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
1 1/4"-4	3 ft.	1	1:1	0.25"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1 1/4"-4	6 ft.	1	1:1	0.25"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1 1/4"-4	12 ft.	1	1:1	0.25"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1 1/4"-5	12"	1	1:1	0.2"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
1 1/4"-5	2 ft.	1	1:1	0.2"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1 1/4"-5	3 ft.	1	1:1	0.2"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1 1/4"-5	4 ft.	1	1:1	0.2"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1 1/4"-5	6 ft.	1	1:1	0.2"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1 1/4"-5	8 ft.	1	1:1	0.2"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1 1/4"-5	12 ft.	1	1:1	0.2"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1 3/8"-4	3 ft.	1	1:1	0.25"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1 3/8"-4	6 ft.	1	1:1	0.25"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1 1/2"-4	12"	1	1:1	0.25"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1 1/2"-4	2 ft.	1	1:1	0.25"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1 1/2"-4	3 ft.	1	1:1	0.25"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1 1/2"-4	4 ft.	1	1:1	0.25"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1 1/2"-4	6 ft.	1	1:1	0.25"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1 1/2"-4	8 ft.	1	1:1	0.25"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1 1/2"-4	12 ft.	1	1:1	0.25"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1 1/2"-5	12"	1	1:1	0.2"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
1 1/2"-5	3 ft.	1	1:1	0.2"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1 1/2"-5	6 ft.	1	1:1	0.2"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
2"-4	12"	1	1:1	0.25"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
2"-4	3 ft.	1	1:1	0.25"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
2"-4	6 ft.	1	1:1	0.25"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
2 1/2"-4	3 ft.	1	1:1	0.25"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
316 Stainless Steel
1/4"-16	12"	1	1:1	0.063"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	00000
1/4"-16	3 ft.	1	1:1	0.063"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	00000
1/4"-16	6 ft.	1	1:1	0.063"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	00000
3/8"-8	12"	1	1:1	0.125"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	00000
3/8"-8	3 ft.	1	1:1	0.125"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	00000
3/8"-8	6 ft.	1	1:1	0.125"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	00000
3/8"-12	12"	1	1:1	0.083"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	00000
3/8"-12	3 ft.	1	1:1	0.083"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	00000
3/8"-12	6 ft.	1	1:1	0.083"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	00000
1/2"-10	12"	1	1:1	0.1"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	00000
1/2"-10	3 ft.	1	1:1	0.1"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	00000
1/2"-10	6 ft.	1	1:1	0.1"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	000000
5/8"-8	12"	1	1:1	0.125"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	00000
5/8"-8	3 ft.	1	1:1	0.125"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	000000
5/8"-8	6 ft.	1	1:1	0.125"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	000000
3/4"-5	12"	1	1:1	0.2"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	00000
3/4"-5	3 ft.	1	1:1	0.2"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	000000
3/4"-5	6 ft.	1	1:1	0.2"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	000000
3/4"-6	12"	1	1:1	0.167"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	00000
3/4"-6	3 ft.	1	1:1	0.167"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	000000
3/4"-6	6 ft.	1	1:1	0.167"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	000000
7/8"-6	12"	1	1:1	0.167"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	00000
7/8"-6	3 ft.	1	1:1	0.167"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	000000
7/8"-6	6 ft.	1	1:1	0.167"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	000000
1"-4	12"	1	1:1	0.25"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	00000
1"-4	3 ft.	1	1:1	0.25"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	000000
1"-4	6 ft.	1	1:1	0.25"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	000000
1"-5	12"	1	1:1	0.2"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	00000
1"-5	3 ft.	1	1:1	0.2"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	000000
1"-5	6 ft.	1	1:1	0.2"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	000000
1"-6	12"	1	1:1	0.167"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	00000
1"-6	3 ft.	1	1:1	0.167"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	000000
1"-6	6 ft.	1	1:1	0.167"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	000000
1"-10	12"	1	1:1	0.1"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	000000
1"-10	3 ft.	1	1:1	0.1"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	000000
1"-10	6 ft.	1	1:1	0.1"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	000000
1 1/4"-5	12"	1	1:1	0.2"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	000000
1 1/4"-5	3 ft.	1	1:1	0.2"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	000000
1 1/4"-5	6 ft.	1	1:1	0.2"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	000000
1 1/2"-4	12"	1	1:1	0.25"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	000000
1 1/2"-4	3 ft.	1	1:1	0.25"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	000000
1 1/2"-4	6 ft.	1	1:1	0.25"	Class 2G	ASTM Grade B8M	Rockwell B97	75,000	ASTM A193	000000000	000000

Lead Screws—Left-Hand Threaded

Alloy Steel
Thread Size	Lg.	No. of Thread Starts	Speed Ratio	Travel Distance per Turn	Thread Fit	Fastener Strength Grade/Class	Hardness	Tensile Strength, psi	Specifications Met		Each
1/4"-16	3 ft.	1	1:1	0.063"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1/4"-16	6 ft.	1	1:1	0.063"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
3/8"-8	3 ft.	1	1:1	0.125"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
3/8"-8	6 ft.	1	1:1	0.125"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
3/8"-10	3 ft.	1	1:1	0.1"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
3/8"-10	6 ft.	1	1:1	0.1"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
3/8"-12	3 ft.	1	1:1	0.083"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
3/8"-12	6 ft.	1	1:1	0.083"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1/2"-8	3 ft.	1	1:1	0.125"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
1/2"-8	6 ft.	1	1:1	0.125"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1/2"-10	3 ft.	1	1:1	0.1"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
1/2"-10	6 ft.	1	1:1	0.1"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
5/8"-6	3 ft.	1	1:1	0.167"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
5/8"-6	6 ft.	1	1:1	0.167"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
5/8"-8	3 ft.	1	1:1	0.125"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
5/8"-8	6 ft.	1	1:1	0.125"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
3/4"-5	3 ft.	1	1:1	0.2"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
3/4"-5	6 ft.	1	1:1	0.2"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
3/4"-6	3 ft.	1	1:1	0.167"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
3/4"-6	6 ft.	1	1:1	0.167"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
3/4"-8	3 ft.	1	1:1	0.125"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
3/4"-8	6 ft.	1	1:1	0.125"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
7/8"-6	3 ft.	1	1:1	0.167"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	00000
7/8"-6	6 ft.	1	1:1	0.167"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1"-4	3 ft.	1	1:1	0.25"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1"-4	6 ft.	1	1:1	0.25"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1"-5	3 ft.	1	1:1	0.2"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1"-5	6 ft.	1	1:1	0.2"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1"-6	3 ft.	1	1:1	0.167"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1"-6	6 ft.	1	1:1	0.167"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1"-8	3 ft.	1	1:1	0.125"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1"-8	6 ft.	1	1:1	0.125"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1"-10	3 ft.	1	1:1	0.1"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1"-10	6 ft.	1	1:1	0.1"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1 1/8"-5	3 ft.	1	1:1	0.2"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1 1/8"-5	6 ft.	1	1:1	0.2"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1 1/4"-4	3 ft.	1	1:1	0.25"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1 1/4"-4	6 ft.	1	1:1	0.25"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1 1/4"-5	3 ft.	1	1:1	0.2"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1 1/4"-5	6 ft.	1	1:1	0.2"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1 3/8"-4	3 ft.	1	1:1	0.25"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1 3/8"-4	6 ft.	1	1:1	0.25"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1 1/2"-4	3 ft.	1	1:1	0.25"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1 1/2"-4	6 ft.	1	1:1	0.25"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1 1/2"-5	3 ft.	1	1:1	0.2"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
1 1/2"-5	6 ft.	1	1:1	0.2"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
2"-4	3 ft.	1	1:1	0.25"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000
2"-4	6 ft.	1	1:1	0.25"	Class 2G	ASTM Grade B7	Rockwell C35	125,000	ASTM A193	000000000	000000

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