Qualities

For higher temperatures:

Studbolts (carbon steels): ASTM A193/B6, B7, B7M, B16
Studbolts (alloys): ASTM A193/B8-CL.1, B8-CL.2, B8T, B8M-CL.1, B8M-CL.2, B8C

For lower temperatures:

Studbolts (carbon steels): ASTM A320/L7, L7M, L43
Studbolts (alloys): ASTM A320/ B8-CL.1, B8-CL.2, B8T, B8M-CL.1, B8M-CL.2, B8C

Nuts:ASTM A194/Gr.2H, 2HM, 3, 4, 6, 7, 7M , 8, 8A, 8T, 8M, 8MA, 8C

Other:

Nickel alloys (studs and/or nuts):

Monel 400, K500 and Incoloy A-286, 330, 925
Alloy 20
Inconel 600, 601, 617, 625, 718, X-750
Hastelloy C22, C276
Nimonic 80A, 90, 105, 263, 901 and Nickel 200, 205

Other alloys (studs and/or nuts):

Haynes, Macalloy, Carpenter 20, Waspalloy
Titanium Gr.5
Duplex UNS 31803 and Superduplex UNS 32760

Other stainless steel alloys (studs and/or nuts):

ASTM A453/Gr.660 – CL.A/B/C and AISI 304, 304L, 309, 310, 316, 316L

As specified in the material designation / EN standard (studs and/or nuts):

CK35, 24CrMo5, 21CrMoV57, 31CrMoV9, 12Ni19, Cunifer 90/10, 42CrMo4

Other qualities and options are available upon inquiry!