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HILLMAN®

Phillips Flat-Head Machine Screw — #4 x 3/8 in., Stainless, 50-Pack

Mfg.#
43071-K
Sku#
6333710

* Estimated stock levels as of Sun, May 10, 2026. All items subject to prior sale. Prices may vary between stores and online. Please call ahead to confirm availability of items marked as Limited Stock.

Description

This stainless Phillips flat-head machine screw is designed for reliable, countersunk fastening where a flush surface and corrosion-resistant finish matter. With a #4 diameter and 3/8-inch length, the #4-40 x 3/8" screw features USS coarse threads and a Phillips drive for quick, positive engagement with common screwdrivers. Made of steel with a stainless finish and a silver appearance, it suits light mechanical assemblies, trim work, appliance and equipment mounting, and small machinery repairs where a low-profile head is preferred. The screw’s coarse thread pattern provides solid grip in threaded holes and inserts, while the flat head allows components and panels to sit flush once installed. Country of origin: TW.

Specifications

General

Color Silver
Drive Style Phillips
Finish Stainless Steel
Head Style Flat
Imperial/Metric Imperial
Indoor/Outdoor Outdoor
Material Steel
Pack Qty 50
Point Type Blunt
Thread Type USS Coarse
Type Machine Screw

Dimensions

Diameter #4
Length 3/8 in
Size #4-40 x 3/8"

Manufacturing Details
The following information is subject to change without notice

Country of Origin TW
Prop 65 Warning Warning WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov

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