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ASME B18.2.1 Titanium Hex Bolts

1. Material & Thread of Titanium Hex Bolt

  • Material: titanium Grade 1, 2, 3, 5, 7, 9, 12, 16.
  • Standards: ASTM B381, ASTM F468, ASME B18.2.1, ASME B1.1.
  • Thread: cut thread or rolled thread; full thread or half thread.

2. Technical Drawings for Titanium Hex Bolts

Drawing of Titanium Hex Bolts

Drawing of titanium hex bolt made to ASME B18.2.1, cut thread & rolled thread.

top view & reduced body of ti. hex bolts

Top view of titanium hex bolt and drawing of its reduced body.

3. Dimensions of Titanium Hex Bolts

NominalEFG
Sizemax.min.basicmax.min.max.min.
1/4"0.2600.2377/160.4380.4250.5050.484
5/16"0.3240.2981/20.5000.4840.5770.552
3/8"0.3880.3609/160.5620.5440.6500.620
7/16"0.4520.4215/80.6250.6030.7220.687
1/2"0.5150.4823/40.7500.7250.8660.826
5/8"0.6420.60515/160.9380.9061.0831.033
3/4"0.7680.7291-1/81.1251.0881.2991.240
7/8"0.8950.8521-5/161.3121.2691.5161.447
1"1.0220.9761-1/21.5001.4501.7321.653
1-1/8"1.1491.0981-11/161.6881.6311.9491.859
1-1/4"1.2771.2231-7/81.8751.8122.1652.066
1-3/8"1.4041.3452-1/162.0621.9942.3822.273
1-1/2"1.5311.4702-1/42.2502.1752.5982.480
1-5/8"1.6581.5912-7/162.4382.3562.8152.616
1-3/4"1.7851.7162-5/82.6252.5383.0312.893
1-7/8"1.9121.8392-13/162.8122.7193.2483.099
2"2.0391.96433.0002.9003.4643.306
2-1/4"2.3052.2143-3/83.3753.2623.8973.719
2-1/2"2.5592.4613-3/43.7503.6254.3304.133
2-3/4"2.8272.7114-1/84.1253.9884.7634.546
3"3.0812.9614-1/24.5004.3505.1964.959
3-1/4"3.3353.2104-7/84.8754.7125.6295.372
3-1/2"3.5893.4615-1/45.2505.0756.0625.786
3-3/4"3.8583.7265-5/85.6255.4376.4956.198
4"4.1113.97566.0005.8006.9286.612
*Unit: inch; E: full-size body diameter; F: width across flats; G: width across corners. Size range: 1/4″ ~ 4″.

NominalHRLT
Sizebasicmax.min.max.min.≤ 6"> 6"
1/4"11/640.1880.1500.030.010.7501.000
5/16"7/320.2350.1950.030.010.8751.125
3/8"1/40.2680.2260.030.011.0001.250
7/16"19/640.3160.2720.030.011.1251.375
1/2"11/320.3640.3020.030.011.2501.500
5/8"27/640.4440.3780.060.021.5001.750
3/4"1/20.5240.4550.060.021.7502.000
7/8"37/640.6040.5310.060.022.0002.250
1"43/640.7000.5910.090.032.2502.500
1-1/8"3/40.7800.6580.090.032.5002.750
1-1/4"27/320.8760.7490.090.032.7503.000
1-3/8"29/320.9400.8100.090.033.0003.250
1-1/2"11.0360.9020.090.033.2503.500
1-5/8"1-3/321.1160.9780.090.033.5003.750
1-3/4"1-5/321.1961.0540.120.043.7504.000
1-7/8"1-1/41.2761.1300.120.044.0004.250
2"1-11/321.3881.1750.120.044.2504.500
2-1/4"1-1/21.5481.3270.190.064.7505.000
2-1/2"1-21/321.7081.4790.190.065.2505.500
2-3/4"1-13/161.8691.6320.190.065.7506.000
3"22.0601.8150.190.066.2506.500
3-1/4"2-3/162.2511.9360.190.066.7507.000
3-1/2"2-5/162.3802.0570.190.067.2507.500
3-3/4"2-1/22.5722.2410.190.067.7508.000
4"2-11/162.7642.4240.190.068.2508.500
*Unit: inch; H: head height; R: radius of fillet; LT: nominal thread length for bolt lengths. Size range: 1/4″ ~ 4″.

Weight calculation for titanium hex bolt:  Wt = ( F * F * H * 30.5 / 2+ π * E * E / 4 * L ) * ρ * 1.64 * 10-5;  ρ = 4510 kg/m3.

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