PDF Publication Title:
Text from PDF Page: 321
9/8/98 AC 43.13-1B TABLE 7-1. Recommended torque values (inch-pounds). CAUTION THE FOLLOWING TORQUE VALUES ARE DERIVED FROM OIL FREE CADMIUM PLATED THREADS. Thread Size TORQUE LIMITS RECOMMENDED FOR INSTAL- LATION (BOLTS LOADED PRIMARILY IN SHEAR) Tension type nuts Shear type nuts MS20364 MS20365 and AN310 and AN320 (24,000 psi in (40,000 psi in bolts) bolts) FINE THREAD SERIES MAXIMUM ALLOWABLE TIGHTENING TORQUE LIMITS Nuts MS20365 and Nuts MS20364 and AN310 (90,000 psi in AN320 (54,000 psi in bolts) bolts) 8-36 10-32 1/4-28 5/16-24 3/8-24 7/16-20 1/2-20 9/16-18 5/8-18 3/4-16 7/8-14 1-14 1-1/8-12 1-1/4-12 12-15 20-25 50-70 100-140 160-190 450-500 480-690 800-1000 1100-1300 2300-2500 2500-3000 3700-5500 5000-7000 9000-11,000 7-9 12-15 30-40 60-85 95-110 270-300 290-410 480-600 600-780 1300-1500 1500-1800 2200-3300* 3000-4200* 5400-6600* 20 40 100 225 390 840 1100 1600 2400 5000 7000 10,000 15,000 25,000 12 25 60 140 240 500 660 960 1400 3000 4200 6000 9000 15,000 COARSE THREAD SERIES 8-32 10-24 1/4-20 5/16-18 3/8-16 7/16-14 1/2-13 9/16-12 5/8-11 3/4-10 7/8-9 12-15 20-25 40-50 80-90 160-185 235-255 400-480 500-700 700-900 1150-1600 2200-3000 7-9 12-15 25-30 48-55 95-100 140-155 240-290 300-420 420-540 700-950 1300-1800 20 35 75 160 275 475 880 1100 1500 2500 4600 12 21 45 100 170 280 520 650 900 1500 2700 The above torque values may be used for all cadmium-plated steel nuts of the fine or coarse thread series which have approximately equal number of threads and equal face bearing areas. * Estimated corresponding values. 7-44. CLOSE-TOLERANCE BOLTS. Close-tolerance, hex head, machine bolts (AN173 through AN186), 100-degree counter- sunk head, close-tolerance, high-strength bolts (NAS333 through NAS340), hex head, close- tolerance, short thread, titanium alloy bolts (NAS653 through NAS658), 100-degree countersunk flathead, close-tolerance titanium alloy bolts (NAS663 through NAS668), and drilled hex head close-tolerance titanium alloy bolts (NAS673 through NAS678), are used in applications where two parts bolted together are subject to severe load reversals and vibra- tion. Because of the interference fit, this type of bolt may require light tapping with a mallet to set the bolt shank into the bolt hole. NOTE: Elimination of friction in in- terference fit applications may some- times be attained by placing the bolt in a freezer prior to installation. When this procedure is used, the bolt should be allowed to warm up to am- bient temperature before torquing. CAUTION: Caution must be exer- cised in the use of close-tolerance bolts for all critical applications, such as Par 7-43 Page 7-9PDF Image | AFS-640
PDF Search Title:
AFS-640Original File Name Searched:
ac_43.13-1b_w-chg1.pdfDIY PDF Search: Google It | Yahoo | Bing
5,000 BF Shipping Container Lumber Dry Kiln For Quality Lumber The 5,000 BF container kiln consists of one 40 foot high-cube aluminum shipping container... More Info
Shipping Container Lumber Dry Kilns by Global Energy Global Energy designed and developed the container kiln back in 1991. The purpose is to give access to portable sawmill owners, furniture makers, and small business the value added profit of dry kiln lumber and quality hardwoods... More Info
Vacuum Kiln Conversion Kit for Lumber and Wood Dry Kilns Convert your existing conventional dry kiln into a fast drying vacuum kiln. Similar to vacuum bagging in the boat building and aircraft industry, we have come up with a proprietary process which allows you to build a very simple vacuum kiln at a fraction of the price, and without the intensive conventional metal chamber structure... More Info
Vacuum Pump Cart System for Bagging Clamping Wood Drying and more Vacuum Cart with 2HP Pump and Dual Pistons with multiple multiplex vacuum ports and liquid reservoir... More Info
Vacuum Bagging Basics Vacuum bagging is a method of clamping, which has traditionally been used in the composites industry, but can also be used for vacuum drying materials, including wood products... More Info
CONTACT TEL: 608-238-6001 Email: greg@globalmicroturbine.com (Standard Web Page)