Commercial wrought nonferrous Socket Set Screws,Soltted Headless Screws & Square Head Screws in common use and intended for general service applications
ASTM F3042 specification covers the requirements for nonferrous socket set screws sizes 0.125 (#5) through 2.000 inch, square head set screws sizes 0.190 (#10) through 1.500 inch, and slotted headless set screws 0.125 (#5) through 0.750 inch in diameter manufactured from a number of nonferrous alloys in use in the marine industry and the U.S. Navy subject to seawater wetting and salt atmosphere but that also may be used in other applications. It is recommended that copper-based alloys not be used in attempting to prevent mechanical components from rotating, such as locking shafts, because of the low hardness of the alloys. Some alloys or sizes or both of set screws may not be readily available. Manufacturers or suppliers should be contacted before design development or anticipated procurement.
| UNS Designation Number |
Alloy | General Name |
Al | Cu, min |
Fe, max |
Mn, max |
Ni, max |
P | Si | Zn, maxA |
Pb, max |
Sn | As, max |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| C26000 | 260 | brass | . . . | 68.5-71.5 | 0.05 | . . . | . . . | . . . | . . . | balance | 0.07 | . . . | . . . |
| C27000 | 270 | brass | . . . | 63.0-68.5 | 0.07 | . . . | . . . | . . . | . . . | balance | 0.10 | . . . | . . . |
| C27400 | 274 | brass | . . . | 61.0-64.0 | 0.05 | . . . | . . . | . . . | . . . | balance | 0.10 | . . . | . . . |
| C46200 | 462 | naval brass | . . . | 62.0-65.0 | 0.10 | . . . | . . . | . . . | . . . | balance | 0.20 | 0.5-1.0 | . . . |
| C46400 | 464 | naval brass | . . . | 59.0-62.0 | 0.10 | . . . | . . . | . . . | . . . | balance | 0.20 | 0.5-1.0 | . . . |
| C61300 | 613 | aluminum bronze | 6.0-7.5 | A | 2.0-3.0 | 0.10 | 0.15B | 0.015 | 0.10 | 0.05 | 0.01 | 0.20-0.50 | . . . |
| C61400 | 614 | aluminum bronze | 6.0-8.0 | 88.0C | 1.5-3.5 | 1.0 | . . . | . . . | . . . | . . . | . . . | . . . | . . . |
| C63000 | 630 | aluminum bronze | 9.0-11.0 | 78.0C | 2.0-4.0 | 1.5 | 4.0-5.5 | . . . | 0.25 max | . . . | . . . | 0.20 max | . . . |
| C65100 | 651 | silicon bronze | . . . | 96.0C | 0.8 | 0.7 | . . . | . . . | 0.8-2.0 | 1.5 | 0.05 | . . . | . . . |
| C65500 | 655 | silicon bronze | . . . | 94.8C | 0.8 | 1.5 | 0.6 | . . . | 2.8-3.8 | 1.5 | 0.05 | . . . | . . . |
| C66100 | 661 | silicon bronze | 0.25 max | 94.0C | 0.25 | 1.5 | . . . | . . . | 2.8-3.5 | 1.5 | 0.20-0.8 | . . . | . . . |
| UNS Designation Number |
Alloy | General Name |
Al | C, max | Cr | CuD | Fe, max | Mn,max | NiD | P, max | Si,max | Ti | Co,max | Mo | S, max | V | W |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| N04400 | 400 | Ni-Cu Class A | . . . | 0.3 | . . . | balance | 2.5 | 2.0 | 63.0-70.0 | . . . | 0.5 | . . . | E | . . . | 0.024 | . . . | . . . |
| N04405 | 405 | Ni-Cu Class B | . . . | 0.3 | . . . | balance | 2.5 | 2.0 | 63.0-70.0 | . . . | 0.5 | . . . | E | . . . | 0.025-0.060 | . . . | . . . |
| N05500 | 500 | Ni-Cu-Al | 2.30-3.15 | 0.25 | . . . | balance | 2.0 | 1.5 | 63.0-70.0 | . . . | 0.5 | 0.35-0.85 | E | . . . | 0.01 | . . . | . . . |
| N06625 | 625F | Ni-Cr-Mo-Cb | 0.40 max | 0.010 | 20.0-23.0 | . . . | 5.0 max | 0.50 | 58.0 min | 0.015 | 0.50 max | 0.40 max | 1.00 max | 8.0-10.0 | 0.015 | . . . | 3.2-4.2 |
| N06686 | 686 | Ni-Cr-Mo-W | . . . | 0.010 max | 19.0-23.0 | . . . | 5.0 max | 0.75 max | balance | 0.04 max | 0.08 max | 0.02-0.25 | . . . | 15.0-17.0 | 0.02 max | . . . | 3.0-4.4 |
| UNS Designation Number |
Alloy | General Name |
Al | C | Fe | Ti | H | N | O | Pd | V | Cr | Mo | Zr | Sn | Si | Ru | ResidualsH | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| each,max | total,max | ||||||||||||||||||
| R55111 | 32 | Titanium Ti-5-1-1-1 | 4.5-5.5 | 0.08 | 0.25 | balance | 0.0125 | 0.03 | 0.11 | . . . | 0.6-1.4 | . . . | 0.6-1.2 | 0.6-1.4 | 0.6-1.4 | 0.06-0.14 | . . . | 0.1 | 0.4 |
| R56401 | 23 | Titanium Ti-6Al-4V ELI | 5.5-6.5 | 0.08 | 0.25 | balance | 0.0125 | 0.05 | 0.13 | . . . | 3.5-4.5 | . . . | . . . | . . . | . . . | . . . | . . . | 0.1 | 0.4 |
| R58640 | 19 | Titanium Ti-38-6-44 | 3.0-4.0 | 0.05 | 0.30 | balance | 0.0200 | 0.03 | 0.12 | 0.10I | 7.5-8.5 | 5.5-6.5 | 3.5-4.5 | 3.5-4.5 | . . . | . . . | 0.10I | 0.15 | 0.4 |
| UNS Designation Numbers | Alloy | General Name | Nominal Thread Dia, in. | Hardness |
|---|---|---|---|---|
| C26000 | 260 | Brass | All | 69 - 91HRB |
| C27000 | 270 | Brass | All | 69 - 91HRB |
| C27400 | 274 | Brass | All | 69 - 91HRB |
| C46200 | 462 | Naval brass | All | 65 - 90 HRB |
| C46400 | 464 | Naval brass | All | 55 - 75 HRB |
| C61300 | 613 | Aluminum bronze | All | 70 - 95 HRB |
| C61400 | 614 | Aluminum bronze | All | 70 - 95 HRB |
| C63000 | 630 | Aluminum bronze | All | 85 - 100 HRB |
| C65100 | 651 | Silicon bronze | Thru 0.750 | 75 - 95 HRB |
| 0.875 - 2.000 | 70 - 95 HRB | |||
| C65500 | 655 | Silicon bronze | All | 60 - 80 HRB |
| C66100 | 661 | Silicon bronze | All | 75 - 95 HRB |
| N04400 | 400 | Nickel copper A | Thru 0.750 | 75 HRB - 25 HRC |
| 0.875 - 2.000 | 60 HRB - 25 HRC | |||
| N04405 | 405 | Nickel copper B | All | 60 HRB - 20 HRC |
| N05500 | 500 | Ni-Cu-Al | All | 24 - 37 HRC |
| N06625 | 625 | Ni-Cr-Mo-Cb | All | 85 HRB - 35 HRC |
| N06686 | 686, Grade 1 | Ni-Cr-Mo-W | All | 21 - 45 HRC |
| R55111 | 32 | Titanium Ti-5-1-1-1 | All | 24 - 38 HRC |
| R56401 | 23 | Titanium Ti-6Al-4V ELI | All | 25 - 36 HRC |
| R58640 | 19 | Titanium Ti-38-6-44 | All | 24 - 38 HRC |
| Alloy | Condition |
|---|---|
| Copper Alloy | As formed or stress relieved at manufacturer's option |
| 400 and 405 Nickel alloys | As formed or stress relieved at manufacturer's option |
| 500 Nickel alloys | Solution annealed and aged |
| 625 Nickel alloys | Annealed |
| 686 Nickel alloys | As formed |
| Titanium | As formed |
| Alloy | Test Method |
|---|---|
| Cu | E53, E54, E62, E75, E478 |
| Ni | E76, E350, E354 |
| Ti | E120, E1409 |
| Nominal Screw Size | Shortest Nominal Screw Lengths Subject to Torque Testing | ||
|---|---|---|---|
| Cup and Flat Points | Cone and Oval Points | Half Dog Point | |
| #5 - 0.125 | 0.188 | 0.188 | 0.172 |
| #6 - 0.138 | 0.172 | 0.203 | 0.188 |
| #8 - 0.164 | 0.188 | 0.219 | 0.203 |
| #10 - 0.190 | 0.188 | 0.250 | 0.234 |
| 1/4- 0.250" | 0.250 | 0.312 | 0.297 |
| 5/16- 0.312" | 0.312 | 0.391 | 0.359 |
| 3/8- 0.375" | 0.375 | 0.438 | 0.438 |
| 7/16- 0.437" | 0.438 | 0.547 | 0.484 |
| 1/2- 0.500" | 0.500 | 0.609 | 0.547 |
| 5/8- 0.625" | 0.63 | 0.88 | 0.88 |
| 3/4- 0.750" | 0.75 | 1.00 | 1.00 |
| 7/8- 0.875" | 0.88 | 1.00 | 1.00 |
| 1 - 1.000" | 1.00 | 1.25 | 1.25 |
| 1-1/8- 1.125" | 1.25 | 1.50 | 1.25 |
| 1-1/4- 1.250" | 1.25 | 1.50 | 1.50 |
| 1-3/8- 1.375" | 1.50 | 1.75 | 1.50 |
| 1-1/2- 1.500" | 1.50 | 2.00 | 1.75 |
| 1-3/4- 1.750" | 1.75 | 2.25 | 2.00 |
| 2 - 2.000" | 2.00 | 2.50 | 2.50 |
Product Shall be Marked with our manufacturing trade mark "TorqBolt" or "TB" along with the designated Grade.
Grade and manufacturer’s identification symbols shall be applied to one end of studs and to the heads of bolts and screws of all sizes. (If the available area is inadequate, the grade symbol may be marked on one end and the manufacturer’s identification symbol marked on the other end.) For bolts and screws smaller than 1⁄4 in. [6 mm] in diameter and studs smaller than 3⁄8 in. [10 mm] in diameter and for 1⁄4 in. [6 mm] in diameter studs requiring more than a total of three symbols, the marking shall be a matter of agreement between the purchaser and the manufacturer.
B18.3 Socket Cap, Shoulder and Set Screws, Hex and Spline Keys (Inch Series)
B18.6.2 Slotted Head Cap Screws, Square Head Set Screws, and Slotted Headless Set Screws Inch Series
E18 Test Methods for Rockwell Hardness of Metallic Materials
E21 Test Methods for Elevated Temperature Tension Tests of Metallic Materials
E112 Test Methods for Determining Average Grain Size
E139 Test Methods for Conducting Creep, Creep-Rupture,and Stress-Rupture Tests of Metallic Materials
E150 Recommended Practice for Conducting Creep and Creep-Rupture Tension Tests of Metallic Materials Under Conditions of Rapid Heating and Short Times
E151 Recommended Practice for Tension Tests of Metallic Materials at Elevated Temperatures with Rapid Heating and Conventional or Rapid Strain Rates
E292 Test Methods for Conducting Time-for-Rupture Notch Tension Tests of Materials
E328 Test Methods for Stress Relaxation for Materials and Structures
E566 Practice for Electromagnetic (Eddy Current) Sorting of Ferrous Metals
E709 Guide for Magnetic Particle Testing
F606/F606M Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, Direct Tension Indicators, and Rivets
F1940 Test Method for Process Control Verification to Prevent Hydrogen Embrittlement in Plated or Coated Fasteners
A962/A962M Specification for Common Requirements for Bolting Intended for Use at Any Temperature from Cryogenic to the Creep Range
A788/A788M for Steel Forgings, General Requirements
| S1 | Shipment Lot Testing |
|---|---|
| S2 | Stress Corrosion Requirements |
| S3 | Dye Penetrant Inspection |
| S4 | Heat Control (Alloys 400, 405, and 500 Only) |
| S5 | Nickel-Copper-Aluminum (500) Alloy |
| S6 | Torque Testing of Hex Socket Set Screws |