Guard4U 280Pcs #4-40 UNC Stainless Steel Flat Head Countersunk Hex Socket Cap Bolts Screws Nuts Assortment Kit
*With a low-profile, countersunk head, flat socket head cap screws are ideal for applications requiring a strong fastener with a flush mount. For example, flat socket cap screws are often used in projects what require moving parts to pass over a fastened area. Allen (hex socket) drive is a six-sided recess for use with an allen wrench (hex key).
*Flat Countersunk Head Socket Cap Screws have a flat top that tapers down to a cone shape that will sit flush into a countersunk hole and give a finished appearance. They are known for their effecient application performance and endurance widely used in a variety of industries such as construction, manufacturing, engineering, assembling, aircraft and so on and serves a wide range of use for professionals, amateurs, landlords, repairmen and DIYers.
*Made from 304 stainless steel, these screws have good chemical resistance and may be mildly magnetic.

*Color: Silver Tone
*Drive Type: Hex Socket
*Head Style: Countersunk Flat Head
*Material: 304 Stainless Steel
*Packed in a plastic box 

List：
Countersunk Head Socket Cap Screws #4-40 x 3/16",20 pcs
Countersunk Head Socket Cap Screws#4-40 x 1/4", 20 pcs
Countersunk Head Socket Cap Screws#4-40 x 5/16", 20 pcs
Countersunk Head Socket Cap Screws#4-40 x 3/8", 20 pcs
Countersunk Head Socket Cap Screws#4-40 x 1/2", 20 pcs
Countersunk Head Socket Cap Screws#4-40 x 5/8", 20 pcs
Countersunk Head Socket Cap Screws#4-40 x 3/4", 20 pcs
Countersunk Head Socket Cap Screws#4-40 x 7/8", 20 pcs
Countersunk Head Socket Cap Screws#4-40 x 1", 20 pcs
Stainless steel Hex Nuts #4-40: 100 pcs

Note
The Flat Countersunk Head Socket Cap Screws length are measured from the top to the end of the thread and the thread length is the overall length minus the height of the head.