ASME B18.31.4M Threaded Rods

ASME B18.31.4M Threaded Rods covers the complete general and dimensional data for metric series threaded rod recognized as an American National Standard. ASME B18.31.4MThis Standard is applicable to both fine and coarse metric series threads of diameters from M1.6 to M56.
The inclusion of dimensional data in ASME B18.31.4M Standard is not intended to imply that all of the products described herein are stock production sizes. Consumers should consult with suppliers concerning lists of stock production sizes.
The Tables measurements are also converted into millimeters to make the information clearer and easier to understand.

ASME B18.31.4M Threaded Rods

ASME B18.31.4M Dimensions (mm)

Nominal Diameters, D Coarse Series Pitch Fine Series Pitch
M1.6 0.35 ...
M2 0.4 ...
M2.5 0.45 ...
M3 0.5 ...
M3.5 0.6 ...
M4 0.7 ...
M5 0.8 ...
M6 1 ...
M8 1.25 1
M10 1.5 0.75, 1, and 1.25
M12 1.75 1 and 1.25
M14 2 1.5
M16 2 1.5
M18 2 1.5
M20 2.5 1.5
M22 2.5 1.5
M24 3 2
M27 3 ...
M30 3.5 2
M36 4 2
M42 4.5 ...
M48 5 ...
M56 5.5 ...
M64 and larger ... ...

ASME Material Specifications

ASTM A193/A193M Bolting, Stud Bolts, Screws
ASTM A320/A320M Bolting, Stud Bolts, Screws
ASTM A354 Bolts
ASTM A449 Hex Cap Screws, Bolts, Studs
ASTM A453/A453M Bolting, Stud Bolts, Screws, Nuts
ASTM A574/A574M Standard Specification for Alloy Steel Socket Head Cap Screws
ASTM A1014/A1014M UNS N07718 Bolting, Stud Bolts, Screws, Nuts
ASTM A1082/A1082M Bolting, Stud Bolts, Screws, Nuts
ASTM F1554 Anchor Bolts, Anchor Rods
ASTM F2882 Stud Bolts, Screws, Threaded Rod
ASTM F3042 Socket Set, Square Head Slotted Headless Screw
ASTM F3125/F3125M Heavy Hex Bolts, Screws, Studs
ASTM F468/F468M Bolting, Stud Bolts, Screws
ASTM F593 Bolting, Stud Bolts, Screws
ASTM F738/F738M Stud Bolts, Screws
ASTM F835/F835M Standard Specification for Alloy Steel Socket Button and Flat Countersunk Head Cap Screws
ASTM F837/F837M Standard Specification for Stainless Steel Socket Head Cap Screws
ASTM F880/F880M Standard Specification for Stainless Steel Socket Set Screws
ASTM F901 Aluminium Transmission Tower Bolts
ASTM F912/912M Standard Specification for Alloy Steel Socket Set Screws

EN Material Specifications

EN 10269 Bolting Fasteners, Bolting Stud Bolts, Screws, Nuts, Washers

ISO Material Specifications

ISO 898-1 Bolting Fasteners, Bolting Stud Bolts, Screws
ISO 3506-1 Bolting, Stud Bolts, Screws, Nuts
ISO 3506-5 Bolting, Stud Bolts, Screws, Nuts