Slotted flat countersunk head machine screw dimensions are shown in the following chart according to ASME B18.6.3 standard. The flat countersunk head has a flat top surface and a conical bearing surface with a head angle of approximately 82 deg for one style and approximately 100 deg for another style. Machine Screws. Uni-Set Machine Screw . Shear Bolt. Kinmar Permanent Bolt. Clutch Head Machine Screw . Sentinel Machine Screw . Four Hole Machine Screw . Pentaforce Machine Screw Machine Screw Size Charts to present dimensions of machine screw sizes according to ASME B18.6.3 Machine Screws and Machine Screw Nuts standard .. Some important notes from the ASME B18.6.03: Machine screws with slotted and recessed heads, flat countersunk head, oval countersunk head, undercut flat and oval countersunk heads, flat and oval countersunk trim …

Stainless Steel Centre Ltd are the largest stockist of Stainless Steel Nuts Bolts, Screws Washers (Fixings Fastenings) both in A2 - A4 situated in the Southampton - Eastleigh area of Hampshire. ms24693j, military specification sheet: screw, machine, flat countersunk head , 100 deg., cross recessed, unc-2a and unf-2a (14-feb-1995) [s/s by nasm24693] ms24694c, military standard: screw, machine, flat countersunk head, 100 deg., structural, cross recessed, unc-3a and unf-3a (16 feb 1969) [s/s by nasm24694].

Diameter Pitch Head Diameter Head Depth No. Cross Recess ; M1.6 : 0.35mm : 3.0mm : 0.96mm : 0 : M2 : 0.4mm : 3.8mm : 1.2mm : 1 : M2.5 : 0.45mm : 4.7mm : 1.5mm : A screw is a type of fastener, in some ways similar to a bolt (see Differentiation between bolt and screw below), typically made of metal, and characterized by a helical ridge, known as a male thread (external thread). Screws are used to fasten materials by digging in and wedging into a material when turned, A Countersink (symbol: ⌵) is a conical hole cut into a manufactured object, or the cutter used to cut such a hole. heremon use is to allow the head of a countersunk bolt, screw or rivet, when placed in the hole, to sit flush with or below the surface of the surrounding material (hereparison, a counterbore makes a flat-bottomed hole that might be used with a socket-head capscrew).

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