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#4-40 x 1/2 #4-40 Phillips Flat/Countersunk Head Machine Screws,A2 Stainless Steel,Thread Length 3/16 to 1-1/2,Pack 100-piece

#4-40 Phillips Flat/Countersunk Head Machine Screws, A2 Stainless Steel, Thread Length 3/16' to 1-1/2', Pack 100-piece (#4-40 x 1/2'), Machine Screws - Canada. #4-40 Phillips Flat/Countersunk Head Machine Screws, A2 Stainless Steel, Thread Length 3/16" to 1-1/2", Pack 100-piece (#4-40 x 1/2") in Machine Screws.. Fastener Type: Machine Screw 。 Drive Type: Phillips 。 Head Style: Flat/Countersunk Head 。 Thread Diameter: #4 。 Thread Pitch: 40 。 All the screws are full threader.。A2 Stainless Steel (304 stainless steel)。Standard metric threads pitch.。The Phillips flat/countersunk head machine screws are bolts designed to fit inside a countersunk hole. A countersink is both the recessed hole and the tool to make the hole that allows compatible screws and bolts to screw in flush to a surface. Flat/Countersunk head screwss are mostly hidden when screwed in, because their heads are shaped to fit within the special holes. When these holes are empty, they look like a normal screw hole with a conical opening at the top; when they are full, the only visible part should be the very top of the screw or bolt.The typical angle of a countersunk screw head is 90 degrees.。Screws Length= Head Height + Thread Length. 。 。 。

#4-40 x 1//2 #4-40 Phillips Flat//Countersunk Head Machine Screws,A2 Stainless Steel,Thread Length 3//16 to 1-1//2,Pack 100-piece
#4-40 x 1//2 #4-40 Phillips Flat//Countersunk Head Machine Screws,A2 Stainless Steel,Thread Length 3//16 to 1-1//2,Pack 100-piece
#4-40 x 1//2 #4-40 Phillips Flat//Countersunk Head Machine Screws,A2 Stainless Steel,Thread Length 3//16 to 1-1//2,Pack 100-piece