28-6660 - Flat Head Machine Screws - #4-40 Length 1/4''
Nickel-plated steel binder head screws 100 per package
Mfr Name: SPC Technology
Mfr Number: SPC21823
28-6665 - Flat Head Machine Screws - #4-40 Length 1/2''
Mfr Number: 18M6005
MCM filled my order promptly and delivery was fast. The item I ordered was top quality as is everything I have ordered from them.