ASTM F3042 Bolting Specification

Commercial wrought nonferrous Socket Set Screws,Soltted Headless Screws & Square Head Screws in common use and intended for general service applications

ASTM F3042 Square Head Bolts, Square Head Screws

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.

Related Specifications of ASTM F3042 Bolting

F467 F468 B564 F2882

ASTM F3042 Chemical Requirements

Copper and Copper-Base Alloys

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 . . . . . .

Nickel and Nickel-Base Alloys

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

Titanium and Titanium-Base AlloysG

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

ASTM F3042 Mechanical Properties

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

ASTM F3042 Materials and Manufacture

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

ASTM F3042 Test Methods

Alloy Test Method
Cu E53, E54, E62, E75, E478
Ni E76, E350, E354
Ti E120, E1409

ASTM F3042 Torque Testing Lengths

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

ASTM F3042 Bolting Surface Treatment Specifications

ASTM F3042 Bolting Components Marking

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.

ASME Dimensional Standards

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

ASTM F3042 Bolting Certifications

  • EN 10204 3.1
  • EN 10204 3.2
  • PED 2014/68/EC
  • MERKBLATT AD 2000 W2/W7/W10
  • API 20 E BSL 1/ BSL 2
  • NACE MR 0175
  • NACE MR 0103

ASTM F3042 Testing Standards

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

ASME Threading Specifications

ASME B1.1 Unified Inch Screw Threads (UN and UNR Thread Form)
ASME B1.3 Screw Thread Gaging System for Dimensional Acceptability - Inch Screw Threads (IN, UNR, and UNJ)

ASTM F3042 Supplementary 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