Nonmetallic Machine Screws | McMaster-Carr

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18-8 Stainless Steel

Aluminum Oxide Ceramic

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Length

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Threading

Partially Threaded

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Maximum Temperature

Less than 200° F

200° F to 249° F

250° F to 499° F

500° F to 999° F

1,000° F or greater

Thread Spacing

Thread Direction

Tensile Strength

Less than 20,000 psi

20,000 psi to 39,999 psi

40,000 psi to 59,999 psi

60,000 psi to 99,999 psi

100,000 psi or greater

REACH

Thread Fit

Metric Class 4g6g

Metric Class 6g

Metric Class 6h

Unified Standard Class 2A

Unified Standard Class 2B

Unified Standard Class 3A

RoHS

Export Control Classification Number (ECCN)

DFARS Specialty Metals

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Minimum Temperature

-100° F or less

-69° F to -50° F

-49° F to -1° F

Greater than 0° F

Thread Pitch

Tip Type

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2,095 Products

Fastening and Joining

Rounded Head Screws

Rounded Head Screws

Sit just above the surface for a low-profile finish and hold tighter than flat head screws

Flat Head Screws

Flat Head Screws

Fit in countersunk holes for a flush finish that won't snag on surrounding parts

Socket Head Screws

Socket Head Screws

With a deeper drive than flat and rounded head screws, these withstand more torque for a tighter hold

Fastener Assortments

Fastener Assortments

Keep a variety of common screws, nuts, and washers on hand

Hex Head Screws

Hex Head Screws

Used with nuts to create a stronger joint than flat and rounded screws

Tighten and loosen by hand without the need for tools

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)