A hefty wood structure can be fastened using machine bolts. These fasteners, however, are not just used for wood-to-wood connections. Any manufacturer of machine bolts in India will advise utilising these bolts for connecting metal to metal as well as metal to wood. The Machine Bolts And Nuts can provide greater rigidity and load-carrying capacity in comparison to normal lag bolts. Machine bolts, on the other hand, frequently have a through-hole requirement.
For the purpose of removing the head and nut, these bolts also require access to both sides of the joint. The specifications for machine bolts come in a single inch-coarse series and are constructed with right-handed threads. Hex bolts and square bolts are two different types of machine bolts that can be categorised based on the design of their heads. These machine bolts, nuts, and washers can be made from a variety of materials, such as stainless steel, alloy steel, carbon steel, copper-nickel, Inconel, Hastelloy, etc.
Because the elements used to alloy them tend to be less expensive than high nickel alloys, it is very inexpensive to create carbon steel, alloy steel, and stainless steel machine bolts and nuts from these materials. Although both parts are fastening mechanisms, the fundamental distinction between a machine bolt and a stud bolt is that the former has a built head while the latter is made of a threaded rod-like structure that can have a nut on either side as the head.
Machine Bolts
standards of British | BS 57 |
---|---|
standards of ISO | ISO 10642 |
Length | 3 millimeter- 200 millimeter |
Size |
M16, M5, M33, (M3.5), (M45), M20, M42, M4, (M22), (M27), (M14), M6, (M18), M36, M48, M12, M2, M3, M10, M24, M30, M8 M160 and as per need |
Standard: |
ASTM, ANSI , ISO, DIN, GB, JIS, BS, IS and all International Standards |
Threads | BSW, METRIC, UNC, BSF, UNF or as per need |
UTS | UNF, NPT, UNC, UNS, UNEF, NPTF |
DIN Standard | B.S. DIN 931, DIN 933, DIN 912, DIN 934, DIN 6923, DIN 603, DIN 7981, DIN 970, DIN916, DIN 7982, DIN 7985, DIN 913 |
Tolerance | +/- 00.01 millimeter to +/- 00.05 millimeter |
Dimensions | ASME B18.6.3 **Exception: shorter are fully threaded and 6 inches screws |
Type | Round/ Pan/ Truss head/ Hex Head/ Oval |
Head | Phillips/Slot,Six-Lobe, Phillips, Slotted etc |
Finishing |
|
Head | flat head, Pan head, hex head, oval head, phillips head |
process of Production | Cold Heading, Wire Drawing, Heat Treatment, Insert tapping, Inspection, Packing, Surface Plating |
Finish | ASTM A380/A380M |
Manufacturers | GKW, SPAX® Screws, Kundan, Unbrako, Sundaram Precision, APL, EBY Fastener , Infasco Etc. |
treatment of Surface |
|
Uses | Wind tower, Railway, Automotive industry, Nuclear power, Electronic industry, Construction |
Certificate provided |
|
Description | Machine Bolts Price list |
---|---|
Stainless Steel Aluminum CNC Machine Turning Hex Bolt | US $ 0.001-0.01 / Piece |
Hex Head 1/2" x 5" Zinc Plated Machine Bolts |
US $0.59...Each |
DIN933 Machine Bolts/Hex Head Bolts/Hexagon Bolts Nuts/Structural Heavy Hex Bolt |
US $ 0.01-0.6 / Piece |
Flat Head Screw Cap Machine Step Customized OEM Bolt (m5*20) | US $ 0.02 / Piece |
High - Speed Machine Production M16X30 -1000 Hexagon Bolts | US $ 790-800 / Ton |
Carbon Steel Pan Head Machine Bolts DIN7985 |
US $ 0.01 / Piece |
Carbon Steel Machine Bolts for Furniture |
US $ 1000 / Ton |
High Tensile Pole Line Hardware 7/8 Inch Diameter Machine Bolts |
US $ 1.5-5 / Piece |
SS304 M8 Square Head Machine Bolts Stainless Steel Flat Head | US $ 0.1-0.18 / Piece |
Size | Coarse Thread (UNC) | Nominal (Major) Diameter [in] |
Fine Thread (UNF) | ||||
---|---|---|---|---|---|---|---|
Threads Per Inch |
Tensile Stress Area [in2] |
Minor Area [in2] |
Threads Per Inch |
Tensile Stress Area [in2] |
Minor Area [in2] |
||
#0 | --- | --- | --- | 0.00600 | 80 | 0.000180 | 0.000151 |
#2 | 56 | 0.000370 | 0.000310 | 0.00860 | 64 | 0.000394 | 0.000339 |
#4 | 40 | 0.000604 | 0.000496 | 0.01120 | 48 | 0.000661 | 0.000566 |
#5 | 40 | 0.000796 | 0.000672 | 0.01250 | 44 | 0.000830 | 0.000716 |
#6 | 32 | 0.000909 | 0.000745 | 0.01380 | 40 | 0.001015 | 0.000874 |
#8 | 32 | 0.00140 | 0.001196 | 0.01640 | 36 | 0.001474 | 0.001285 |
#10 | 24 | 0.00175 | 0.001450 | 0.01900 | 32 | 0.00200 | 0.00175 |
1/4" | 20 | 0.00318 | 0.00269 | 0.02500 | 28 | 0.00364 | 0.00326 |
5/16" | 18 | 0.00524 | 0.00454 | 0.03125 | 24 | 0.00580 | 0.00524 |
3/8" | 16 | 0.00775 | 0.00678 | 0.03750 | 24 | 0.00878 | 0.00809 |
7/16" | 14 | 0.01063 | 0.00933 | 0.04375 | 20 | 0.01187 | 0.01090 |
1/2" | 13 | 0.01419 | 0.01257 | 0.05000 | 20 | 0.01599 | 0.01486 |
9/16" | 12 | 0.0182 | 0.0162 | 0.05625 | 18 | 0.0203 | 0.0189 |
5/8" | 11 | 0.0226 | 0.0202 | 0.06250 | 18 | 0.0256 | 0.0240 |
3/4" | 10 | 0.0334 | 0.0302 | 0.07500 | 16 | 0.0373 | 0.0351 |
7/8" | 9 | 0.0462 | 0.0419 | 0.08750 | 14 | 0.0509 | 0.0480 |
1" | 8 | 0.0606 | 0.0551 | 1.0000 | 12 | 0.0663 | 0.0625 |
1-1/8" | 7 | 0.0763 | 0.0693 | 1.1250 | 12 | 0.0856 | 0.0812 |
1-1/4" | 7 | 0.0969 | 0.0890 | 1.2500 | 12 | 1.073 | 1.024 |
1-3/8" | 6 | 1.155 | 1.054 | 1.3750 | 12 | 1.315 | 1.260 |
1-1/2" | 6 | 1.405 | 1.294 | 1.5000 | 12 | 1.581 | 1.521 |
1-3/4" | 5 | 1.90 | 1.74 | 1.7500 | --- | --- | --- |
2" | 4.5 | 2.50 | 2.30 | 2.0000 | --- | --- | --- |
Nominal Size | Minimum Threaded Length |
Head Height |
Head Width | |||||
---|---|---|---|---|---|---|---|---|
eeee | Across Corners |
Across Flats |
||||||
Decimal | Fraction | >6" | ≤6" | Basic | Avg | Basic | ||
0.02500 | 1/4 | 1 | 3/4 | 11/64 | 33/64 | 3/8 | ||
0.03125 | 5/16 | 1 1/8 | 7/8 | 13/64 | 11/16 | 1/2 | ||
0.03750 | 3/8 | 1 1/4 | 1 | 1/4 | 49/64 | 9/16 | ||
0.04375 | 7/16 | 1 3/8 | 1 1/8 | 19/64 | 55/64 | 5/8 | ||
0.05000 | 1/2 | 1 1/2 | 1 1/4 | 21/64 | 1 1/32 | 3/4 | ||
0.06250 | 5/8 | 1 3/4 | 1 1/2 | 27/64 | 1 9/32 | 15/16 | ||
0.07500 | 3/4 | 2 | 1 3/4 | 1/2 | 1 35/64 | 1 1/8 | ||
0.08750 | 7/8 | 2 1/4 | 2 | 19/32 | 1 51/64 | 1 5/16 | ||
1.00000 | 1 | 2 1/2 | 2 1/4 | 21/32 | 2 1/16 | 1 1/2 | ||
1.01250 | 1 1/8 | 2 3/4 | 2 1/2 | 3/4 | 2 5/16 | 1 11/16 | ||
1.02500 | 1 1/4 | 3 | 2 3/4 | 27/32 | 2 37/64 | 1 7/8 |
Metric Size | M10 - M100 |
Forming | Cold and Hot Forged |
Imperial Size | 3/8 to 8 inch |
Standards | ISO, BS, DIN, ASME, DIN-EN, UNI |
Sub types | 1.Metric Machine Bolts 2. Partial Threaded Machine Bolts 3. Fully Threaded Machine Bolts 4. Imperial Machine Bolts |
Threads | BSW, UNC, UNF, ACME, ISO |
Nominal Size | Head Height |
Head Width | Minimum Threaded Length |
|||
---|---|---|---|---|---|---|
Across Corners |
Across Flats |
|||||
Decimal | Fraction | Basic | Avg | Basic | >6" | ≤6" |
0.03750 | 3/8 | 1/4 | 41/64 | 9/16 | 1 1/4 | 1 |
0.04375 | 7/16 | 19/64 | 45/64 | 5/8 | 1 3/8 | 1 1/8 |
0.05000 | 1/2 | 11/32 | 27/32 | 3/4 | 1 1/2 | 1 1/4 |
0.06250 | 5/8 | 27/64 | 1 1/16 | 15/16 | 1 3/4 | 1 1/2 |
0.07500 | 3/4 | 1/2 | 1 17/64 | 1 1/8 | 2 | 1 3/4 |
0.08750 | 7/8 | 37/64 | 1 31/64 | 1 5/16 | 2 1/4 | 2 |
1.00000 | 1 | 43/64 | 1 11/16 | 1 1/2 | 2 1/2 | 2 1/4 |
1.01250 | 1 1/8 | 3/4 | 1 29/32 | 1 11/16 | 2 3/4 | 2 1/2 |
1.02500 | 1 1/4 | 27/32 | 2 7/64 | 1 7/8 | 3 | 2 3/4 |
1.03750 | 1 3/8 | 29/32 | 2 21/64 | 2 1/16 | 3 1/4 | 3 |
1.05000 | 1 1/2 | 1 | 2 17/32 | 2 1/4 | 3 1/2 | 3 1/4 |
1.07500 | 1 3/4 | 1 5/32 | 2 31/32 | 2 5/8 | 4 | 3 3/4 |
Bolts are actually machine screws with a continuous thread, no point, and the ability to be connected to drilled and tapped holes or threaded materials like nuts. A stud is a bolt without a head.
Material |
Grades |
ASTM Standards |
---|---|---|
Alloy Steel |
B 7/ B 7M, B 6, 2, B 16, 2H, 2HM, B 7, GR 6, B 7M |
ASTM A 194/193 / ASME SA 194/193 GR |
Nickel Alloy |
UNS 8020 (ALLOY 20 / 20 CB 3), UNS 4400 (MONEL 400), UNS 2200 (NICKEL 200) / UNS 2201 (NICKEL 201), UNS 6600 (INCONEL 600) / UNS 6601 (INCONEL 601), UNS 8825 (INCONEL 825), UNS 10276 (HASTELLOY C 276), UNS 6625 (INCONEL 625) |
ASTM / ASME SB 164 /160 / 166 /425 / 574 / 446 / 472 |
Stainless Steel |
B 8C (SS 347), B 8 (304), B 8 T (SS 321), B 8M (SS 316), A 4, A 2 |
ASTM A 194/193 / ASME SA 194/193 |
Duplex Steel |
LENGTH: UPTO 5 METERS, size Range: M10 - M100 |
UNS NO. S32205, S31803 |
High-Temp Alloys |
19-9 DL, Discaloy, A286, 16-25-6, Nimonic 80, Titanium, Haynes 25, Mulitmet, Unitemp 252, Greek Ascalloy, Rene 41, Udimet 500, Inco 901, Inco 700, 235, Hastelloy X, RA 330, Waspaloy | |
Finish: |
Zinc Plating, Black Oxide, Hot Dip Galvanized | |
Trademarks: |
Armco, Carpenter, DuPont, Cabot, INCO | |
Nonmetallic Materials: |
Kel-F, Acrylic, Lexan, Poly Vinyl Chloride, Polypropylene, Zytel 31, 105, 101, Teflon | |
Aluminum Alloys: |
5052, 2024, 3003, 2011, 6061, 2014, 6053, 7075, 2017, 1100 | |
Copper Base Alloys |
Copper, Brasses: Free-cut, Yellow, Naval, Red, Bronze: Phosphor, Commercial, Aluminum, Silicon A & B, Manganese, Silicon-Aluminum, Munitz Metal, Ampco Alloys, Cupro-Nicles |
Dammam -KSA, Indonesia, Philippines, Belgium | Cheese Head Machine Bolts |
Qatar, Europe, France, Thailand | Hexagon Groove Pan Head Step Screw Machine Screw Half Tooth Bolt |
Czechia, Thailand, Germany, Malaysia | SS304 Stainless Steel A2-70 Screw Pan Head Machine Bolts |
Malaysia, Bangladesh, USA, Finland | Mushroom Round Head Square Neck Carriage Machine Bolts |
South Africa, Kuwait, Saudi Arabia (KSA), Brazil | U Bolt Pipe Clamp Galvanized Manufacturing Machine A194 B7 U Bolt |
Bahrain ,Singapore, South Africa | Double End Threaded Machine Bolts |
Philippines, UK, Australia, Nigeria | Forged Steel Galvanized Standard Machine Long Rod Bolt |
Oman, Hong Kong, Malaysia, UAE | Machine Screw Machine Bolts Fastener |
Chile, Iran, Italy, Singapore | Flat Head Socket Head Machine Screws and Bolt |
United Arab Emirates (UAE), Norway, Turkey, Malaysia | Stainless Steel 304 DIN912 Socket Head Cup Machine Bolts |
Netherlands, Russia, Malaysia, Dubai | DIN6921 Hexagon Head with Flange Bolt Machine Screw Hex Flange Bolt |
Egypt, Mexico, Spain, UK | Stainless Steel Machine Screw/Bolt |
United Kingdom -UK, Malaysia, Europe, UAE | Forged S279 Shoulder Type Machinery Eye Bolt |
UK, Poland, Canada, Ellington -United States | Zinc Plated SAE J429 Gr. 5 Course Thread Square Head Machine Bolts |
Philippines, Canada, Malaysia, Singapore | Standard Size Carbon Steel Galvanized Machine Screw Hex Bolts |
Europe, Romania, Japan, Malaysia | M2.5 X 20mm Machine Screw Hex Pitch Bolt |
Sweden, Malaysia, Colombia, China | Brass Hexagon Hex Head Machine Bolts |
BS 1769 | ½ inch - 2 inch |
UNI 5712 | M12 - M36 |
ASME B18.2.1 | 3/8 inch - 3 inch |
ASME B18.2.3.7M | M16 - M36 |
DIN-EN 14399-4 | M12 - M36 |
ASME B18.2.3.6M | M12 - M36 |
ISO 7412 | M12 - M36 |
DIN 6914 | M12 - M36 |
Bolt Dia.0 [in] | Bolt Size | Close Fit [in] | Normal Fit [in] | Loose Fit [in] |
---|---|---|---|---|
0.00600 | #0 | 0.0067 | 0.0076 | 0.0094 |
0.00860 | #2 | 0.0094 | 0.0102 | 0.0116 |
0.01120 | #4 | 0.0120 | 0.0128 | 0.0144 |
0.01250 | #5 | 0.0141 | 0.0156 | 0.0172 |
0.01380 | #6 | 0.0154 | 0.0170 | 0.0185 |
0.01640 | #8 | 0.0180 | 0.0196 | 0.0213 |
0.01900 | #10 | 0.0206 | 0.0221 | 0.0238 |
0.02500 | 1/4" | 0.0266 | 0.0281 | 0.0297 |
0.03125 | 5/16" | 0.0328 | 0.0344 | 0.0359 |
0.03750 | 3/8" | 0.0391 | 0.0406 | 0.0422 |
0.04375 | 7/16" | 0.0453 | 0.0469 | 0.0484 |
0.05000 | 1/2" | 0.0531 | 0.0562 | 0.0609 |
0.06250 | 5/8" | 0.0656 | 0.0688 | 0.0734 |
0.07500 | 3/4" | 0.0781 | 0.0812 | 0.0906 |
0.08750 | 7/8" | 0.0906 | 0.0938 | 1.0031 |
1.00000 | 1" | 1.0031 | 1.0094 | 1.0156 |
1.01250 | 1-1/8" | 1.0156 | 1.0219 | 1.0312 |
1.02500 | 1-1/4" | 1.0281 | 1.0344 | 1.0438 |
1.03750 | 1-3/8" | 1.0438 | 1.0500 | 1.0609 |
1.05000 | 1-1/2" | 1.0562 | 1.0625 | 1.0734 |
Thread Size ‘D’ | M4 | M6 | M3 | M5 |
---|---|---|---|---|
Head Dia, Max “D2” | 8 | 12 | 6 | 10 |
Head Height, Max “K” | 2.4 | 3.6 | 1.8 | 3 |
Driver Size “No.” | .70 | 1 | .50 | .80 |
Size | Nominal Thread Diameter | |
---|---|---|
Nearest Fractional | Decimal | |
#0 | 1/16" | 0.0060" |
#1 | 5/64" | 0.0073" |
#2 | 3/32" | 0.0086" |
#3 | 7/64" | 0.0099" |
#4 | 7/64" | 0.0112" |
#5 | 1/8" | 0.0125" |
#6 | 9/64" | 0.0138" |
#8 | 5/32" | 0.0164" |
#10 | 3/16" | 0.0190" |
#12 | 7/32" | 0.0216" |
Thread Size ‘D’ | M10 | M2.5 | M8 | M2 | M4 | M3 | M6 | M5 |
---|---|---|---|---|---|---|---|---|
Head Dia, Max “D2” | 18 | 4.7 | 14.5 | 3.8 | 7.5 | 5.6 | 11 | 9.2 |
Head Height, Max “K” | 5 | 1.5 | 4 | 1.2 | 2.2 | 1.65 | 3 | 2.5 |
Pitch “P” | 1.50 | .45 | 1.25 | .40 | .7 | .50 | 1 | .8 |
Recommended Thread Sizes | Clearance Hole | Depth of Thread Recommended blind hole thread engagement(Drilled and Tapped both ends) |
||
---|---|---|---|---|
Diameter x Pitch | Clearance Hole Range | Diameter x Pitch | Screw Engagement | Thread Size |
M1.06 x 0.035 | 1.08 To 2.01 | 1.06 x 0.035 | 4.08 mm | M 2.05 |
2.00 x 0.040 | 2.02 To 2.08 | 2.00 x 0.040 | 8.04 | 3.00 |
2.05 x 0.045 | 2.07 To 3.01 | 2.05 x 0.045 | 9.05 | 3.05 |
3.00 x 0.050 | 3.02 To 3.06 | 3.00 x 0.050 | 11.01 | 4.00 |
3.05 x 0.060 | 3.07 To 4.02 | 3.05 x 0.060 | 12.07 | 5.00 |
4.00 x 0.070 | 4.02 To 4.08 | 4.00 x 0.070 | 14.03 | 6.00 |
5.00 x 0.080 | 5.03 To 6.00 | 5.00 x 0.080 | 14.03 | 7.00 |
6.00 x 1.000 | 6.03 To 7.00 | 6.00 x 1.000 | ||
6.03 x 1.000 | 6.07 To 7.05 | 6.03 x 1.000 | ||
8.00 x 1.025 | 8.05 To 9.05 | 8.00 x 1.025 | ||
10.00 x 1.05 | ||||
12.00 x 1.075 |