Metric Series-Dimensions 1. The bolts and screws will generally conform to IS : 1364, ISO 4014, ISO 4017 and DIN 931/933.. Threads will conform to class 6g of IS : 418, Coarse Series. 3. Material : Panchsheel Fasteners High grade carbon/alloy steel. 4. Heat Treatment : Property Class 10.9 or 8.8 of IS : 1367. 5. Thread Length LT: LT1 for L < 15 LT for L > 15 to 00 LT3 for L > 00 6. Screw lengths equal to or shorter than those listed in row 'LET' will be threaded to head. 7. Sizes in brackets are non-preferred standards. 8. All dimensions are in millimeters. Thread Pitch W C B H R Q Length of Thread Length Size Max Min. Max Nom. Min. Min. Range LT1 LT LT3 LFT L M4 0.7 7.0 7.66 4.0.8 0. 5.9 14 - - 0 10-40 M5 0.8 8.0 8.79 5.0 3.5 0. 6.9 16 - - 0 10-50 M6 1.0 10.0 11.05 6.0 4.0 0.5 8.9 18 - - 5 10-50 M8 1.5 13.0 14.38 8.0 5.3 0.4 11.6 8-30 1-90 M10 1.5 16.0 17.80 10.0 6.4 0.4 15.6 6 3 45 35 16-90 M1 1.75 18.0 0.3 1.0 7.5 0.6 17.4 30 36 49 40 0-80 (M14).0 1.0 3.45 14.0 8.8 0.6 0.5 34 40 53 45 5-00 M16.0 4.0 6.75 16.0 10.0 0.6.5 38 44 57 50 5-80 (M18).5 7.0 30.14 18.0 11.5 0.6 5.3 4 48 61 60 40-00 M0.5 30.0 33.53 0.0 1.5 0.8 8. 46 5 65 60 40-80 (M).5 34.0 37.7.0 14.0 0.8 30.0 50 56 69 65 50-80 M4 3.0 36.0 39.98 4.0 15.0 0.8 33.6 54 60 73 75 50-80 (M7) 3.0 41.0 45.0 7.0 17.0 1.0 38.0 60 66 79 85 70-300 M30 3.5 46.0 50.85 30.0 18.7 1.0 4.7 66 7 85 85 75-300 (M33) 3.5 50.0 55.55 33.0 1.0 1.0 46.6 7 78 91 95 75-300 M36 4.0 55.0 60.79 36.0.5 1.0 51.1 78 84 97 100 80-300 (M39) 4.0 60.0 66.44 39.0 5.0 1.0 55.9 84 90 103 110 90-300 M4 4.5 65.0 7.0 4.0 6.0 1. 61.6 90 96 109 10 90-300 1
Metric Series-Physical Properties - Tightening Torques Physical Properties Property Class 8.8 10.9 Diameter < M 16 > M 16 all diameters Unit N/mm Kgf/mm N/mm Kgf/mm N/mm Kgf/mm Tensile Stength Min. 800 81.5 830 84.6 1040 106.0 Yield Strength, 0.% offset Min. 640 65. 660 67. 940 95.8 Proof Lead Stress 580 59.1 600 61. 830 84.6 Shear Strength, Min. 480 48.9 498 50.8 64 63.6 Brinell HB 19-85 4-319 95-36 Hardness Rockwell HRC 0-30 3-34 31-39 Elongation % on GL = 5.65A. 1% Min. 9 % Min. A= Cross Sectional Area. Recommended Tightening Torques and Induced Loads : Property Class 8.8 Property Class 10.9 Thread Stress Torque Induced Load Torque Induced Load Size Area mm Nm Kgm. N Kgs. Nm Kgm. N Kgs. M4 8.78 3.0 0.30 3877 395 4.3 0.44 5695 580 M5 M6 M8 M10 M1 (M14) M16 (M18) M0 (M) M4 (M7) 14. 6.0 0.6 6361 648 8.9 0.91 9344 95 0.1 10.3 1.05 9005 918 15.1 1.54 1330 1348 36.6 5.0.54 16400 1671 37.0 3.73 4080 455 58.0 50.0 5.11 6360 686 74.0 7.50 38700 3946 84.3 87.0 8.90 38300 3905 18.0 13.08 56300 5735 115.0 139.0 14.17 5300 537 05.0 0.8 76800 784 157.0 14.0 1.8 7300 7375 315.0 3.06 106300 1083 19.0 304.0 30.97 9100 9300 435.0 44.10 19900 1346 45.0 431.0 43.91 116400 11868 615.0 6.54 165800 16903 303.0 586.0 59.74 144000 14677 835.0 85.08 05100 0904 353.0 745.0 75.94 167700 17100 1060.0 108.00 38700 4333 459.0 1090. 111.00 18100 34 1550.0 158.00 310400 31640 M30 561. 0 1480.0 150.00 66600 7175 105.0 14.60 379400 38671 The tightening torques calculated to induce approximate stresses as under in screw threads: 448 n/mm for Property Class 8.8 dia < M16 46 N/mm for Property Class 8.8 dia > M16 658 N/mm for Property Class 10.9. (M33) M36 (M39) M4 694.0 013.0 05.0 39800 33618 865.0 9.00 469300 47839 817.0 586.0 63.60 38800 39576 3680.0 375.00 55500 56318 976.00 3346.0 341.10 463800 4778 4760.0 485.40 660000 6778 110.0 4135.0 41.50 5300 5453 5880.0 599.80 757400 7705
Inch Series, UNC-Dimensions 1. The bolts and screws will generally conform to ANSI B 18..1 (Bolts/Screws) made to ANSI B. 18..1 will also generally conform to B.S.1768).. Threads will conform to class A of ANSI B1.1 or BS 1580 for Unified threads (Coarse Fine). 3. Material : Panchsheel Fasteners High grade carbon/alloy steel. 4. Heat Treatment : As per SAE grade 5 or 8 (Bolts/Screws made to SAE grade 5 and 8 will also generally conform to requirements of grade 'S' & 'V' of BS 1768 respectively. 5. Thread Length LT: LT1 for L < 6 LT for L > 6 6. Screw lengths equal to or shorter than those listed in row 'LET' will be threaded to head. 7. All dimensions are in inches. Length of Thread Thread Pitch W C B H R Q Size UNC Max. Min. Max. Nom. Min. Min. LT1 LT LFT Length Range L 1/4" 5/16" 3/8" 7/16" 1/ " 5/8" 3/4" 7/8" 1" 0 0.4375 0.505 0.500 0.158 0.015 0.411 3/4-1 1/-.1/4 18 0.5000 0.577 0.315 0.06 0.015 0.473 7/8-1.1/8 1/-4 16 0.565 0.650 0.3750 0.38 0.015 0.535 1-1.1/4 1/-4 14 0.650 0.7 0.4375 0.86 0.015 0.595 1.1/8-1.3/8 3/4-3.1/ 13 0.7500 0.866 0.5000 0.318 0.015 0.70 1.1/4 1.1/ 1.1/ 3/4-3.1/ 11 0.9375 1.083 0.650 0.398 0.00 0.908 1.1/ 1.3/4 1.7/8 1-8 10 1.150 1.300 0.7500 0.473 0.00 1.090 1.3/4.1/8 1.1/-8 9 1.315 1.515 0.8750 0.553 0.040 1.75.1/4.3/8 1.1/-8 8 1.5000 1.73 1.0000 0.617 0.060 1.463.1/4.1/.5/8 1.1/-8 3
Inch Series, UNC-Physical Properties-Tightening Torques : Grade Grade 5 Grade 8 Tensile Strength (Min) Proof Load Stress 1000 lbs/in 150000 lbs/in 84.5 Kgf/mm 105.4Kgf/mm 85000 lbs/in 10000 lbs/in 59.9 Kgf/mm 84.5 Kgf/mm Elongation % on GL = 4 x Gauge Dia 14% 1% Rockwell Hardness RC 5-34 RC 33-39 Recommended Tightening Torques and Induced Loads UNC Thread Thread Stress Grade 5 Grade 8 Size Area Torque Induced Load Torque Induced Load 1/4" 0.034 99.1 086 140 948 5/16" 0.053 03.4 346 87.4 4841 3/8" 0.0786 360.5 5061 509.7 715 7/16" 0.1078 577.1 694 815.4 9809 1/" 0.1438 879.6 960 143. 13085 5/8" 0.90 1705. 14748 409.5 0839 3/4" 0.3380 300.0 1767 467.6 30758 7/8" 0.4670 4868.5 30075 6878.7 4497 1" 0.610 791 3941 1030.9 5569 4
P.F. Hexagon Nuts Metric Series-dimensions-Physical Properties 1. The nuts will generally conform to IS : 1364, ISO 403, DIN 934, 970.. Threads will conform to class 6H of IS : 418, Coarse Series. 3. Material & Heat Treatment To achieve mechanical properties of Property Class 8 or 10 of IS : 1367-VI. ISO 898/ 4. Nuts of Property Class 8 are used with bolts of Property Class 8.8 Nuts of Property Class 10 are used with bolts of Property Class 10.9 (In general, nuts of a higher property class can replace nuts of a lower property class in a joint) 5. In Bolts/Nut assembly, tightening should be done by rotation of nut. Torque values as recommended in tables for bolts (p:5). 6. Sizes in brackets are non-preferred standards. 7. All dimensions are in millimeters. Dimensions : Thread Pitch W C H Size Max. Min. Max. M4 M5 M6 M8 M10 M1 (M14) M16 (M18) M0 (M) M4 (M7) M30 (M33) M36 (M39) M4 0.7 7.0 7.66 3.0 0.8 8.0 8.79 4.00 4.70 1.0 10.0 11.05 5.00 5.0 1.5 13.0 14.38 6.50 6.80 1.5 16.0 17.77 8.00 8.40 1.75 18.0 0.03 10.00 10.80.0 1.0 3.35 11.00 1.80.0 4.0 6.75 13.00 14.80.5 7.0 9.56 15.00 15.80.5 30.0 3.95 16.00 18.00.5 34.0 37.7 18.00 19.40 3.0 36.0 39.55 19.00 1.50 3.0 41.0 45.0.00 3.80 3.5 46.0 50.85 4.00 5.60 3.5 50.0 55.37 6.00 8.70 4.0 55.0 60.79 9.00 31.00 4.0 60.0 66.44 31.00 33.40 4.5 65.0 7.09 34.00 Property Class 8 Property Class 10 Physical Properties Nuts Size Proof Load Hardness Hardness Proof Load Hardness Hardness Stress HV HR Stress HV HRC Over To N/mm Min. Max Min. Max N/mm Min. Max Min. Max M4 800 170 HRB 87 1040 30 HRC 30 M4 M7 810 1040 M7 M10 830 188 HRB 90 1040 7 353 6 36 M10 M16 840 1050 M16 M4 90 33 53 HRC 19 HRC 36 1060 5
P.F. Hexagon Nuts Metric Series, UNC-Dimensions-Physical Properties 1. The nuts will generally conform to ANSI B 18.. (Nuts made as per ANSI B 18.. will also generally conform to BS 1768).. Threads will conform to class B of ANSI B 1.1 and BS 1580 for Unified threads (coarse/fine) 3. Material & Heat Treatment To achieve mechanical properties of SAE grade 5 or 8 (Nuts made to SAE grade 5 and 8 will also generally conform to requirements of grade 1 & 5 of B.S. 1768 respectively). 4. In Bolts/Nut assembly, tightening should be done by rotation of nut. Torque values as recommended in tables for bolts (p:7). 5. All dimensions are in inches. Dimensions : Thread T. P. I. W C H Size UNC Max. Max. Nom. 1/4" 0 0.4375 0.505 0.19 5/16" 18 0.5000 0.577 0.66 3/8" 16 0.565 0.650 0.38 7/16" 14 0.6875 0.794 0.375 1/" 13 0.7500 0.866 0.437 5/8" 11 0.9375 1.083 0.547 3/4" 10 1.150 1.300 0.641 7/8" 9 1.315 1.515 0.750 1" 8 1.5000 1.73 0.859 Physical Properties Grade For use with Proof Load Size Rockwell Bolts of Stress Hardness Grade 10000 Lbs/in 5 5 All Sizes RC 3 max 78.9 kgf/mm 8 8 150000 Lbs/in Up to 5/8" RC 4-3 10.6 kgf/mm above 5/8" RC 6-34 Up to 1" 6