3 8 Hex Bolt Torque

Torque tolerance 0 15 of torquing values.

3 8 hex bolt torque.

Steel bolts sae grades sae steel bolts grades ranging grade 1 to 8 2 proof and tensile strength. Coarse fine coarse fine coarse fine coarse fine coarse fine coarse fine 4 5 2 4 8 4 3. 18 8 stainless steel. Of the bolt proof loads specified for sae j 429 grade 5 and astm a 449 bolts.

For other friction. Tightening torque guide for grade 5 8 hex cap screws this table is based on ifi 5th edition technical data n 12 n 16 using equation 1 and a torque coefficient k 0 20 for non plated steel fasteners and k 0 15 for plated fasteners. Recommended bolt torque table size recommended torque grade 2 grade 5 grade 8 18 8 s s bronze brass. Under over tightening of fasteners can result in costly equipment failure or personal injury.

In lbs lbs lbs lbs. Us bolts tensile strength and proof loads tensile strength and proof loads sae bolts. 3 8 15 17 23 26 33 37 20 22 18 20 16 18 7 16 24 27 37 41 52 58 31 33 29 31 26 27 1 2 37 41 57 64 80 90 43 45 40 42 35 37 9 16 53 59 82 91 115 129 57 63 53 58 47 51. Us hex bolts inches.

Recommended bolt torque values for stainless steel and nonferrous fasteners inch series. The following torque values are suggested maximums based upon actual lab testing on clean and dry or near dry fasteners. 1 3 8 12 72967 1003 1254 1421 1672 118324 1627 2034 2305 2712 138686 1907 2384 2701 3278 1 1 2 12 87747 1316 1645 1865 2194 142292 2134 2668 3024 3557 166778 2502 3127 3544 4169 torque tension relationship for a307a grade 5 8 9 bolts locknut size threads per inch steel hex locknut steel hex flange nut grade c fnl grade 9 grade f grade g. Rev 3 6 09 torque tension relationship for a307a grade 5 8 9 bolts in sq.

Metric torque chart for hex head cap screws torque chart for stainless steel cap screws size 316 i n c h 18 8 i n c h. Torque is only an indirect indication of tension. Torque values stainless steel bolt table chart. Unc and unf unified inch screw threads ansi asme b1 1 unified national thread unc coarse series and unf fine series.

Grade 2 grade 5 grade 8 18 8 s s bronze brass. Extreme caution should be used when using a formula for torque tension relationships. These figures represent an estimate of torque torque being the measurement of friction not tension required to induce given preload clamp load in a bolt. 5 8 8 8 10 9 class 5 8 class 8 8 class bolt head identification bolt size grade 2 grade 5 grade 8 metric bolt head identification bolt size inches.