#4-40 x 21/64 in Phillips Flat Machine Screw, Black Oxide 18-8 Stainless Steel, 50 PK MPN:5GLZ0
#4-40 x 21/64 in Phillips Flat Machine Screw, Black Oxide 18-8 Stainless Steel, 50 PK
These #4-40 x 21/64 in Phillips Flat Machine Screws are made from durable 18-8 stainless steel with a black oxide finish, providing long-lasting corrosion resistance in harsh environments. Ideal for applications where high strength and resistance to chemicals and extreme temperatures are required, these screws are perfect for use in aerospace, marine, and medical industries. Their flat head design allows for easy installation and visibility, while the #1 drive size ensures secure fastening. With a tensile strength of 80,000 psi, these screws can withstand heavy loads and provide reliable performance in a wide range of applications.
Top product features:
- Stainless steel construction provides resistance to corrosion and durability
- Phillips drive allows for easy installation and removal with a screwdriver
- Black oxide finish helps to prevent galling and reduces wear on mating parts
Top product applications:
- Electrical Panel Assembly
- Automotive Engine Mounting
- Medical Device Assembly
Machine Screw, Head Type Flat, Material Stainless Steel, Finish Black Oxide, Drive Phillips, Thread Size #4-40, Fastener Length 21/64 in, Head Width 0.208 in, Head Height 0.049 in, Drive Size #1, Tensile Strength 80,000 psi, Dimensional Standards ASME B18.6.3, Pack Size Small, Minimum Thread Length Not Applicable, Type Machine Screw, Washer Outside Diameter Not Applicable, Washer Thickness Not Applicable, Maximum Head Width 13/64 in, Minimum Head Width Not Applicable, Maximum Head Height 3/64 in
Additional Information
- Country of Origin: US
- Drop Ship Item: No
- Blind Ship Eligible: No
- LTL Freight Required: No
- Lead Time: Ships in 1 days
- Minimum Order Quantity: 1
- Unit of Measure: PK
- Package Length: 4.00
- Package Width: 1.50
- Package Height: 0.50
- Package Weight: 0.04
Product info last updated on February 1, 2026 10:46am UTC
Category: Screws and Bolts