Home Company Product Facility Feedback Contact   • Pipes and Tubing • Pipes fitting • Flanges • Nipple • Valves • Fasteners/Hangers • PE FITTINGS • Manufacturing Equipment • Inspection & Testing Equipment Weight & Thread Charts SCREWS & NUTS DIA. -> MACHINE SCREWS (POUNDS PER 1000 PIECES) LENGTH N° 0 N° 1 N° 2 N° 3 N° 4 N° 5 N° 6 N° 8 N° 10 N° 12 1/4" 5/16" 3/8" 1/8" 0.09 0.19 0.34 0.49 0.67 0.90 1.18 1.81 2.73 4.00 - - - 3/16" 0.12 0.24 0.42 0.59 0.79 1.06 1.37 2.09 3.09 4.49 6.55 - - 1/4" 0.15 0 29 0 49 0.69 0.91 1.22 1.56 2.38 3.45 4.97 7.20 13.46 _ 5/16" 0.18 0.34 0.57 0.79 1.03 1.37 1.74 2.66 3.81 5.46 7.85 14.50 23.84 3/8" 0.21 0.39 0.64 0 89 1.15 1.53 1.93 2.94 4.18 5.94 8.50 15.54 25.37 7/16" 0.24 0.44 0.72 0.99 1.27 1.69 2.11 3.32 4.54 6.43 9.15 16.58 26.90 1/2" 027 0.49 0.79 1.09 1.39 1.85 2.30 3.50 4.90 6.92 9.80 17.63 28.43 9/16" 0.30 0.54 0.87 1.19 1.51 2.01 2.49 3.78 5.26 7.40 10.45 18.67 29.95 5/8" 0.33 0.59 0.94 1.29 1.63 2.17 2.67 4.06 5.63 7.89 11.10 19.71 31.48 3/4" 0 36 0.64 1.09 1.49 1.87 2.49 3.05 4.63 6.35 8.86 12.40 21.79 34.54 7/8" - - 1.24 1.69 2.11 2.80 3.42 5.19 7.08 9.83 13.70 23.83 37.59 1" - - 1.39 1.89 2.35 3.12 3.79 5.75 7.80 10.80 15.00 25.95 40.65 1 1/8" - - - - 2.59 3.44 4.16 6.31 8.53 11.77 16.30 28.03 43.71 1 1/4" - - - - 2.83 3.76 4.54 6.88 9.25 12.74 17.60 30.11 46.76 1 1/2" - - - - 3.31 4.39 5.28 8.00 10.70 14.69 20.20 34.28 52.87 1 3/4" - - - - 3.79 5.03 6.03 9.13 12.15 16.63 22.80 38.44 58.99 2" - - - - 4.27 5.66 6.77 10.25 13.60 18.57 25.40 42.60 65.10 2 1/4" - - - - - - 7.52 11.38 15.05 20.51 28.00 46.76 71.21 2 1/2" - - - - - - 8.26 12.50 16.50 22.46 30.60 50.93 77.32 2 3/4" - - - - - - 9.01 13.63 17.95 24.40 33.20 55.09 83.44 3" - - - - - - 9.75 14.75 19.40 26.34 35.80 59.25 89.55 HEXAGON NUTS (POUNDS PER 100 PIECES) Diameter Finished Finished Jam Heavy Coupling 1/4" 0.72 0.53 1.20 1.9 5/16" 1.06 0.76 2.02 3.7 3/8" 1.53 1.03 3.20 3.5 7/16" 2.78 1.84 4.70 - 1/2" 3.60 2.59 6.70 5.58 9/16" 5.62 3.67 9.00 - 5/8" 6.92 4.82 11.90 21.00 3/4" 12.70 8.58 19.20 25.20 7/8" 19.90 13.10 29.20 - 1" 29.40 19.30 42.30 - 1 1/8" 41.90 27.00 58.50 - 1 1/4" 59.30 41.10 81.20 - 1 3/8" 78.80 54.30 105.30 - 1 1/2" 101.50 68.90 136.50 -           • Choose Stainless Steel to combat corrosion and prevent fastener failure  • NUTS AND WASHERS                   APPROXIMATE SHIPPING WEIGHTS              FOR 18-8 STAINLESS STEEL (316ss: +1%)                          (POUNDS PER 100 PIECES) NUTS (POUNDS PER 100 PIECES) Diameter Nylon Insert Slotted Hexagon Wing Nuts Cap Nuts Square Nuts N°10 0.51 0.34 0.75 0.67 0.40 N°12 - - - 0.80 0.69 1/4" 0.88 1.03 1.33 1.28 0.76 5/16" 1.07 1.70 2.25 2.69 - 3/8" 1.78 2.70 3.67 3.81 - 7/16" 2.90 3.95 9.00 5.00 - 1/2" 4.24 5.60 8.75 7.00 - 9/16" 7.10 7.50 - - - 5/8" 8.65 10.00 23.50 9.36 - 3/4" 12.30 16.40 21.50 13.46 - 7/8" 19.40 24.70 - 30.30 - 1" 25.80 35.60 - 43.59 1 1/8" 41.00 49.70 - - - 1 1/4" 58.00 69.20 - - - 1 3/8" 77.00 91.50 - - - 1 1/2" 100.00 120.00 - - - WASHERS (POUNDS PER 100 PIECES) Nominal Screw or Bolt Size Lock Washer CounterSunk Finishing Washer Flat Washers Flange Compression Washer N° 0 (.060) 0.003 - 0.0095 - N° 1 (.073) 0.005 - 0.0133 - N° 2 (.086) 0.011 - 0.0181 - N° 3 (.099) 0.017 - 0.033 - N°4 (.112) 0.017 0.05 0.044 - N°5 (.125) 0.028 - 0.057 - N°6 (.138) 0.031 0.07 0.051 - N°8 (.164) 0.054 0.11 0.077 - N° 10 (.216) 0.079 0.14 0.122 - N° 12 (.216) 0.119 0.18 0.173 - 1/4" 0.259 0.22 0.362 - 5/16" 0.444 - 0.618 - 3/8" 0.700 - 1.042 - 7/16" 1.021 - 1.854 - 1/2" 1.436 - 2.723 1.12 9/16" 1.977 - 3.185 - 5/8" 2.587 - 4.408 2.27 3/4" 4.293 - 6.810 3.73 7/8" 6.739 - 9.587 5.71 1" 9.662 - 13.943 8.91 NOMINAL SIZE,THREADS PER INCH AND THREAD SERIES 0 - 80 UNF 1 - 64 UNC 1 - 72 UNF 2 - 56 UNC 2 - 64 UNF 3 - 48 UNC 3 - 56 UNF 4 - 40 UNC 4 - 48 UNF 5 - 40 UNC 5 - 44 UNF 6 - 32 UNC 6 - 40 UNF 8 - 32 UNC 8 - 36 UNF 10 - 24 UNC 10 - 32 UNF 12 - 24 UNC 12 - 28 UNF 1/4 - 20 UNC 1/4 -28 UNF 5/16 - 18 UNC 5/16 - 24 UNF 3/8 - 16 UNC 3/8 - 24 UNF 7/16 - 14 UNC 7/16 - 20 UNF 1/2 - 13 UNC 1/2 - 20 UNF 9/16 - 12 UNC 9/16 - 18 UNF 5/8 - 11 UNC 5/8 - 18 UNF 3/4 - 10 UNC 3/4 - 16 UNF 7/8 - 9 UNC 7/8 - 14 UNF 1 - 8 UNC 1 - 12 UNF 1 - 14 UNS 1 1/8 - 7 UNC 1 1/8 - 8 UN 1 1/4 - 7 UNC 1 1/4 - 8 UN 1 3/8 - 6 UNC 1 3/8 - 8 UN 1 1/2 - 6 UNC 1 1/2 - 8 UN 1 5/8 - 8 UN 1 3/4 - 5 UNC 1 3/4 - 8 UN 1 7/8 - 8 UN   SIZE MM PITCH MM  DRILL    MM M1 .25 .75 M1.1 .25 .85 M1.2 .25 .95 M1.4 .3 1.10 M1.6 .35 1.25 M1.8 .35 1.45 M2 .4 1.60 M2.2 .45 1.75 M2.5 .45 2.05 M3 .5 2.50 M3.5 .6 2.90 M4 .7 3.30 M4.5 .75 3.75 M5 .8 4.20 M6 1 5.00 M7 1 6.00 M8 1.25 6.75 M9 1.25 7.75 M10 1.5 8.50 M11 1.5 9.50 M12 1.75 10.2 M14 2 12.0 M16 2 14.0 M18 2.5 15.5 M20 2.5 17.5 M22 2.5 19.5 M24 3 21.0 M27 3 24.0 M30 3.5 26.5 M33 3.5 29.5 M36 4 32.0 M39 4 35.0 M42 4.5 37.5 M45 4.5 40.5 M48 5 43.0 M52 5 47.0 M56 5.5 50.5 M60 5.5 54.5 M64 6 58.0 M68 6 62.0 M72 6 66.0 M76 6 70.0                       *SIZES SHOWN ARE APPROXIMATE AND MAY VARY