Material : "UNILOK" High Grade Alloy Steel. 4. Heat Treatment : HRc 38-44. 5 For thread lengths LT, see page 14. 6 All dimensions are in 

Reference: Dimensions of Counterbore and Cap Screw Hole for Hex Socket Head Cap ScrewsD P.1891. * The strength class signifies the screw's tensile strength.

Metric DIN 7984 are hexagon socket cap screws with a low profile head and are designed to be used where a reduced head height is of importance. Because of their reduced head height, the socket size is also reduced and as such cannot be preloaded to the same degree as a standard hex socket cap screw. Consequently a low head socket cap screw

Inch Socket Head Cap Screws - 1960 Series Nominal Size M Spline Socket Size Nom. J Hexagon Socket Size Nominal T Key Engage- ment Min. G Wall Thickness Min. K Chamfer Or Radius Max. L Thread Length Max. Min. #2 0.096 5/64 0.078 0.038 0.029 0.003 0.80 0.62 #3 0.096 5/64 0.078 0.044 0.034 0.003 0.83 0.62

The length of a flat socket head cap screw is measured from the top of the head to the flat of the point unlike other socket products whose length measurement is from underneath the head to the flat of the point. Applicable Standards: ASME B18.3 and ASTM F835. Hardness: R C 37-44. Tensile Strength: 180,000psi min 5/8" diameter and smaller. 13

Socket Head Cap Screws - 1960 series 5/8 to 3 - UNRC/UNRF 1. Thread Class: #0 to 1” - 3A, over 1” - 2A 2. Working Temperature: -50 C to +300 C 3. Torques calculated in accordance

Cap screws of a length 3D or greater, where D equals the nominal diameter of the screw, are subject to tensile strength, yield strength, elongation and reduction of area testing. Tensile Strength0 through 1/2" diameters: 180,000 psi. minimum; 5/8"

Round Head Screws 1-1 Various Head Styles Machine Scerws 1-2 to 1-23 Tapping Screws (Approx. Hole Sizes) 1-24 Thumb and Wing Screws 1-25 to 1-27 B7 Studs and Nuts Stud Bolts for Pressure-Temperature Piping 2-1 General Purpose End-to-End Studs 2-2 Tap End Stud Bolts 2-3 Double End Stud Bolts 2-4 Bolts

Smaller diameter socket head cap screws vs. larger processes insure the dimensional Metric socket cap screws are NOT sold in a single strength level.

Diameter/Nominal Size: #0 ; Length: 1" ; Wrench Size/Across Flats: 0.050" ; Head Diameter: 0.091-0.096" ; Head Height: 0.057-0.060".

Socket Head Cap Screws - 1960 series 5/8 to 3 - UNRC/UNRF 1. Thread Class: #0 to 1" - 3A, over 1" - 2A 2. Working Temperature: -50°C to +300°C 3. Torques calculated in accordance with VDI 2230 "Systematic calculation of high duty bolted joints" with σ 0.2 = 155 K.S.I. and μ = 0.125 for plain finish and μ = 0.094 for plated.