Screw Shafts | McMaster-Carr

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System of Measurement

Thread Size

Length

Material

Threading

Threaded on Both Ends

Threaded on One End

Thread Direction

Left Hand

Right Hand

Right Hand and Left Hand

Thread Type

Metric Rounded Trapezoidal

Thread Pitch

Finish

Hot-Dipped Galvanized

PTFE Coated

Zinc Plated

Zinc Yellow-Chromate Plated

Component

Ball Nut

Ball Screw

Ball Screw with One Machined End

Fastener Strength Grade/Class

Thread Spacing

Nut Type

Tensile Strength

10,000 psi to 19,999 psi

20,000 psi to 39,999 psi

40,000 psi to 99,999 psi

100,000 psi or greater

Thread Length

Thread Fit

ASME Interference Class 5

Metric Class 6g

Metric Class 6h

Metric Interference Sk6

Metric Trapezoidal Class 7e

Metric Trapezoidal Class 7H

Metric Trapezoidal Class 8e

Unified Standard Class 1A

Unified Standard Class 2A

Unified Standard Class 2B

Unified Standard Class 3A

Hardness

DFARS Specialty Metals

Diameter

Export Control Classification Number (ECCN)

RoHS

Compliant with Exemptions

REACH

Overall Length

Fastener Strength Rating

Specifications Met

Travel Distance per Turn

9,918 Products

Power Transmission

Lead Screws and Nuts

Components travel along a screw with broad, square threads to clamp and lift heavy loads

1,873 products

Ball Screws and Nuts

Internal ball bearings roll on screws for low friction when moving components at high speeds

207 products

Shafts

Transmit power, motion, and speed between machine components

92 products

Connecting Rods

Use with rod ends and swivel joints to link components in push/pull assemblies

808 products

Lead and Ball Screw End Supports

Brace and secure the ends of lead screws and ball screws

16 products

Ball Screw/Splines

Transmit rotary power, move loads along the shaft, or do both at once

3 products

Roller Screws and Nuts

More contact points to move heavier loads than ball and lead screw assemblies

8 products

Fastening and Joining

Threaded Rods

Anchor, connect, or hang components in a wide variety of applications

5,336 products

Single-End Studs

Use the unthreaded end as a pivot point, hinge, shaft, or locator pin

184 products

Studs

Press, weld, or screw in place to add a threaded fastening point

674 products

Wood Screws

Fasten material to wood or pieces of wood to each other

13 products

Standoffs

Threaded to separate or connect parts as well as position components in assemblies

3 products

Thread Adapters

Join threads of a different type, size, and gender

59 products

Fabricating and Machining

Setup Studs

Secure setup clamps and fixtures to your machine table or assemble heavy machines

619 products

Clamps

Hold workpieces securely in place

17 products