Karna International

Product family

Threaded Rod & Stud Bolts

Threaded bar, or fully threaded rod, in metric sizes to DIN 975/976 and in inch sizes, B7 stud bolts in alloy steel to ASTM A193 Grade B7, and double-end studs to ASTM A193 B7 and B8M. These lines are not in the printed catalogue yet, so the table below is the current list.

Call +1 (415) 725-9165 or WhatsApp, Mon–Sat, 9:30–18:30 IST

Standards
DIN 975 / 976, ASTM A193, ASTM A193 Grade B7, ASTM A193 B7, B8M
Materials
Alloy steel, Carbon steel, Stainless steel
Finishes, done in-house
  • Plain (self colour)
  • Hot-dip galvanizing
  • Zinc plating with trivalent (Cr3+) passivation — hexavalent-chromium-free

Product lines

34 lines

Threaded rod

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Sizes
M6–M36 / 1/4"–1-1/2" UNC, 1/4"–1" UNF
Lengths
to 3 m / 10 ft
Grades
4.6, 8.8
Threaded Rod & Stud Bolts: Threaded rod
ProductSizesLengthGradeStandardQuote
Threaded rod M6
1 m / 3 ft · 2 m / 7 ft · 3 m / 10 ft
DIN 975 / 976
Threaded rod M8
1 m / 3 ft · 2 m / 7 ft · 3 m / 10 ft
DIN 975 / 976
Threaded rod M10
1 m / 3 ft · 2 m / 7 ft · 3 m / 10 ft
DIN 975 / 976
Threaded rod M12
1 m / 3 ft · 2 m / 7 ft · 3 m / 10 ft
DIN 975 / 976
Threaded rodNot in the printed catalogue, but we supply it.
M14–M36 / 9/16"–1-1/2"
to 3 m / 10 ft
4.6, 8.8
Threaded rod 1/4"-20
3 · 5 · 6 · 8 · 10 ft
ASTM A193
Threaded rod 5/16"-18
3 · 5 · 6 · 8 · 10 ft
ASTM A193
Threaded rod 3/8"-16
3 · 5 · 6 · 8 · 10 ft
ASTM A193
Threaded rod 7/16"-14
3 · 5 · 6 · 8 · 10 ft
ASTM A193
Threaded rod 1/2"-13
3 · 5 · 6 · 8 · 10 ft
ASTM A193
Threaded rod 9/16"-12
3 · 5 · 6 · 8 · 10 ft
ASTM A193
Threaded rod 5/8"-11
3 · 5 · 6 · 8 · 10 ft
ASTM A193
Threaded rod 3/4"-10
3 · 5 · 6 · 8 · 10 ft
ASTM A193
Threaded rod 7/8"-9
3 · 5 · 6 · 8 · 10 ft
ASTM A193
Threaded rod 1"-8
3 · 5 · 6 · 8 · 10 ft
ASTM A193
Threaded rod 1 1/8"-7
3 · 5 · 6 · 8 · 10 ft
ASTM A193
Threaded rod 1 1/4"-7
3 · 5 · 6 · 8 · 10 ft
ASTM A193
Threaded rod 1 3/8"-6
3 · 5 · 6 · 8 · 10 ft
ASTM A193
Threaded rod 1 1/2"-6
3 · 5 · 6 · 8 · 10 ft
ASTM A193

B7 stud bolts

Download catalogue

Every product family, with standards and size ranges. Tell us who you are and we’ll email you a link to read and download it, opening at page 1.

We’ll send the link here.

Threaded Rod & Stud Bolts: B7 stud bolts
ProductLengthStandardMaterialQuote
B7 stud bolt 1/4"-20
2 · 4 · 6 · 8 · 10 · 12 in
ASTM A193 Grade B7
Alloy Steel
B7 stud bolt 5/16"-18
2 · 4 · 6 · 8 · 10 · 12 in
ASTM A193 Grade B7
Alloy Steel
B7 stud bolt 3/8"-16
2 · 4 · 6 · 8 · 10 · 12 in
ASTM A193 Grade B7
Alloy Steel
B7 stud bolt 7/16"-14
2 · 4 · 6 · 8 · 10 · 12 in
ASTM A193 Grade B7
Alloy Steel
B7 stud bolt 1/2"-13
2 · 4 · 6 · 8 · 10 · 12 in
ASTM A193 Grade B7
Alloy Steel
B7 stud bolt 9/16"-12
2 · 4 · 6 · 8 · 10 · 12 in
ASTM A193 Grade B7
Alloy Steel
B7 stud bolt 5/8"-11
2 · 4 · 6 · 8 · 10 · 12 in
ASTM A193 Grade B7
Alloy Steel
B7 stud bolt 3/4"-10
2 · 4 · 6 · 8 · 10 · 12 in
ASTM A193 Grade B7
Alloy Steel
B7 stud bolt 7/8"-9
2 · 4 · 6 · 8 · 10 · 12 in
ASTM A193 Grade B7
Alloy Steel
B7 stud bolt 1"-8
2 · 4 · 6 · 8 · 10 · 12 in
ASTM A193 Grade B7
Alloy Steel
B7 stud bolt 1 1/8"-7
2 · 4 · 6 · 8 · 10 · 12 in
ASTM A193 Grade B7
Alloy Steel
B7 stud bolt 1 1/4"-7
2 · 4 · 6 · 8 · 10 · 12 in
ASTM A193 Grade B7
Alloy Steel
B7 stud bolt 1 3/8"-6
2 · 4 · 6 · 8 · 10 · 12 in
ASTM A193 Grade B7
Alloy Steel
B7 stud bolt 1 1/2"-6
2 · 4 · 6 · 8 · 10 · 12 in
ASTM A193 Grade B7
Alloy Steel

Double-end studs

Threaded Rod & Stud Bolts: Double-end studs
ProductSizesLengthStandardQuote
Double-end stud
M6–M24 / 1/4"–1" UNC/UNF
to 500 mm / 20"
ASTM A193 B7, B8M

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Call +1 (415) 725-9165 or WhatsApp, Mon–Sat, 9:30–18:30 IST

Two members of the Karna International team at the IFE Phoenix 2026 stand, Booth 2635, between tables of fastener, strut and bracket samples under pole line, fastener, channel and dock hardware banners

Booth 2635 · 8–⁠9 October 2026

Thank you for visiting us at IFE Phoenix

It was good to meet you at Booth 2635. Send us your drawing, part list or quantities, and we'll come back to you with a quote.