SQUARE HEAD MACHINE BOLT
Catalog No. Bolt Dia. Bolt Length Thread Length Approx. Ship Wt. Per Each 
inch mm inch mm inch mm
Hot Dip Galvanized
MB3802 3/8 9,53 2 50.80 1 44.45 0.11 lbs
MB3803 3 76.20 1 69.85 0.13 lbs
MB3804 4 101.60 3 76.20 0.15 lbs
MB38412 4-1/2 114.30 3 76.20 0.17 lbs
MB3805 5 127.00 3 76.20 0.18 lbs
MB38512 5-1/2 139.70 3 76.20 0.19 lbs
MB3806 6 152.40 3 76.20 0.21 lbs
MB3807 7 177.80 3 101.60 0.24 lbs
MB3808 8 203.20 4 101.60 0.27 lbs
MB3810 10 254.00 4 101.60 0.32 lbs
MB12112 1/2 12,70 1-1/2 38.10 1-1/4 31.75  
MB1202 2 50.80 1-1/4 44.45 0.21 lbs
MB12212 2-1/2 63.50 1-1/4 57.15 0.24 lbs
MB1203 3 76.20 1-1/4 69.85 0.27 lbs
MB1204 4 101.60 3 76.20 0.31 lbs
MB12412 4-1/2 114.30 3 76.20 0.33 lbs
MB1205 5 127.00 3 76.20 0.35 lbs
MB1206 6 152.40 3 76.20 0.40 lbs
MB1207 7 177.80 3 76.20 0.48 lbs
MB1208 8 203.20 4 101.60 0.49 lbs
MB1209 9 228.60 4 101.60 0.57 lbs
MB1210 10 254.00 4 152.40 0.60 lbs
MB1212 12 304.80 4 152.40 0.71 lbs
MB1214 14 355.60 6 152.40 0.73 lbs
MB1216 16 406.40 6 152.40 0.82 lbs
MB5802 5/8 15,88 2   1 1/2   0.36 lbs
MB58212 2 1/2   2 1/4   0.39 lbs
MB5803 3   2 3/4   0.48 lbs
MB5804 4   3   0.57 lbs
MB5805 5   3   0.60 lbs
MB5806 6 152.40 3 76.20 0.69 lbs
MB5807 7 177.80 4 101.60 0.75 lbs
MB5808 8 203.20 4 101.60 0.78 lbs
MB5809 9 228.60 4 101.60 0.88 lbs
MB5810 10 254.00 6 152.40 0.93 lbs
MB5812 12 304.80 6 152.40 1.08 lbs
MB5814 14 355.60 6 152.40 1.23 lbs
MB5816 16 406.40 6 152.40 1.40 lbs
MB5818 18 457.20 6 152.40 1.54 lbs
MB5820 20 508.00 6 152.40 1.71 lbs
MB5822 22 558.80 6 152.40 1.76 lbs
MB5824 24 609.60 6 152.40 196 lbs
MB5826 26 660.40 6 152.40 2.15 lbs
MB5828 28   6   2.31 lbs
MB5830 30 762.00 6 152.40 2.52 lbs
MB3402 3/4 19,05 2   1-3/4   0.65 lbs
MB3403 3   1-3/4   0.75 lbs
MB3406 6   3   1.09 lbs
MB3407 7   3   1.18 lbs
MB3408 8 203.20 4 101.60 1.26 lbs
MB3410 10 254.00 4 101.60 1.54 lbs
MB3412 12 304.80 6 152.40 1.62 lbs
MB3414 14 355.60 6 152.40 1.88 lbs
MB3416 16 406.40 6 152.40 2.25 lbs
MB3418 18 457.20 6 152.40 2.32 lbs
MB3420 20 508.00 6 152.40 2.52 lbs
MB3422 22 558.80 6 152.40 2.68 lbs
MB3424 24 609.60 6 152.40 3.04 lbs
MB3426 26 660.40 6 152.40 3.08 lbs
MB3428 28   6   3.23 lbs
MB3430 30 762.00 8 152.40 3.46 lbs
MB3432 32 762.00 8 152.40 3.69 lbs
MB78212 7/8 22,23 2 1/2   2   0.90 lbs
MB7803 3   2   0.94 lbs
MB7804 4   2   1.15 lbs
MB7805 5   2 1/2   1.30 lbs
MB7806 6   2 1/2   1.44 lbs
MB7808 8   3   1.76 lbs
MB7810 10   6   2.08 lbs
MB7812 12   6   2.40 lbs
MB7814 14 355.60 6 152.40 2.84 lbs
MB7816 16 406.40 6 152.40 3.16 lbs
MB7818 18 457.20 6 152.40 3.52 lbs
MB7820 20 508.00 6 152.40 3.90 lbs
MB7822 22 558.80 6 152.40 4.25 lbs
MB7824 24 609.60 6 152.40 4.30 lbs
MB7826 26 660.40 8 152.40 4.62 lbs
MB7828 28 711.20 8 152.40 4.94 lbs
MB7830 30 762.00 8 152.40 5.27 lbs
MB7832 32 812.80 8 152.40 5.61 lbs
MB7834 34 863.60 6 152.40  
MB7836 36 914.40 6 152.40  
MB01312 1 25,40 3-1/2   2-1/2   1.48 lbs
MB0104 4   3   1.58 lbs
MB0105 5   3   1.79 lbs
MB0106 6   3   2.01 lbs
MB0108 8   4   2.43 lbs
MB0110 10   4   2.85 lbs
MB0112 12 304.80 6 152.40 3.27 lbs
MB0114 14 355.60 6 152.40 3.69 lbs
MB0116 16 406.40 6 152.40 4.12 lbs
MB0118 18 457.20 6 152.40 4.54 lbs
MB0120 20 508.00 6 152.40 4.96 lbs
MB0122 22 558.80 6 152.40 5.38 lbs
MB0124 24 609.60 6 152.40 5.81 lbs
MB0126 26 660.40 6 152.40 6.24 lbs
MB0128 28 711.20 8 152.40 6.67 lbs
MB0130 30   8   7.10 lbs
MB0132 32 762.00 8 152.40 7.53 lbs
Stainless Steel
MB5816 5/8 15,88 16 406.40 6 152.40  
MB5818 18 457.20 6 152.40  
MB5820 20 508.00 6 152.40  
MB5822 22 558.80 6 152.40  
MB5824 24 609.60 6 152.40  
MB5826 26 660.40 6 152.40  
MB5828 28 711.20 6 152.40  

 

 Bolt/ nuts meet ANSI B18.2.1/B18.2.2

Hot Dip Galvanized per ASTM A153

nuts tapped after galvanizing

all DIm before galvanizing