Global Suppliers, delivering steel where and when you need it
  • Global Certificate: ISO 9001:2008
  • Language
Triton Alloys

Threaded Adapter

  • Machined from 303 Stainless Steel
  • Adapt One Common Thread Standard to Another
  • Ideal for Mounting Posts

Triton Alloys Inc selection of thread adapters offers numerous options for switching between M3, M4, M6, 4-40, 6-32, 8-32, and 1/4"-20 thread sizes. Choose from external-to-internal, external-to-external, or internal-to-internal thread adapters. We also offer internal-to-external threaded stud adapters.

Counterbore Adapters

Threaded counterbore adapters are used to convert a counterbore to a threaded hole. A part such as the KM100  kinematic mirror mount features counterbores to provide imperial and metric compatibility. A cap screw is typically used to fasten these mounts to a post, but in some instances it is necessary to attach the mount to a post with a fixed threaded stud. The counterbore adapter allows parts, such as the KM100, to be post mounted when a capscrew cannot be used.

The SD1 is an adapter ring that provides a means to attach 8-32 (M4) tapped components to 1/4"-20 (M6) counterbored parts. One possible use of the SD1 is in adovetail optical rail setup where the RC1 rail carriers feature a 1/4" (M6) counterbore. Optic mounts are commonly attached to RC1 rail carriers and usually require the SD1 adapter as most optic mounts are 8-32 (M6) tapped.

Specification :

Size: 1/2"NB TO 24"NB IN
Class: 150 LBS, 300 LBS
Materials: Monel :
Grade: Monel 400, Monel K500, Monel R-405
Nickel :
Grade: Nickel 200, Nickel 201
Inconel :
Grade: Inconel 600, Inconel 601, Inconel 625, Inconel 718
Incoloy :
Grade: Incoloy 800, Inconel 800H, 800HT
Hastalloy :
Grade: Hastalloy B2, Hastalloy B3, Hastalloy C22, Hastalloy C276, Hastalloy X
Titanium :
Grade: Gr1, Gr2, Gr3, Gr5, Gr7, Gr11
Stainless Steel :
Grade: ASME / ASTM SA / A403 SA / A 774 WP-S, WP-W, WP-WX, 304, 304L, 316, 316L, 304/304L, 304H, 316H, 316/316L, 321, 330, 347, 309/S, 310/S, 317/L, 333, 410/S, DIN 1.4301, DIN1.4306, DIN 1.4401, DIN 1.4404
Carbon Steel :
Grade: ASTM A 234 WPB , WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70
Duplex Steel:
Grade: ASTM / ASME A/SA 182 UNS F44, F45, F51, F53, F55, F60, F61
Alloy Steel:
Grade : ASTM SA 182 - E25, E26, E27, E28, E29B, E30B, E39B, E40B, E36B, E36C, E41B, AISI4130, AISI4140, AISI4340, 42CRMO4, 16MNCR5, 20MNCR5, 21CrMoV57, EN353, EN354, F11, F22, F91, F9, P11, P22, P91, P9, P5, P92, EN42J, EN8, EN19
Value Added Service : CNC Machine, Customized Flanges

Thread Adapter Kits

Thread Adapter Kits are available in both imperial and metric varieties. Both kits come packaged in an organizing box with convenient scaled drawing labels and contain our most popular thread adapters. See below for a list of the specific adapters contained in each kit.

Item # Thread A Thread B Length C
Imperial Thread Adapters
AP8E4Ea 8-32 4-40 0.38" (9.7 mm)
AP8E25Ea 8-32 1/4"-20 0.57" (14.5 mm)
Imperial/Metric Thread Adapters
AP8E4Ma,b 8-32 M4 x 0.7 0.48" (12.2 mm)
AP25E6Ma,b 1/4"-20 M6 x 1.0 0.57" (14.5 mm)
AP6M8Ea,b M6 x 1.0 8-32 0.57" (14.5 mm)
Metric Thread Adapters
AP4M3Mb M4 x 0.7 M3 x 0.5 0.38" (9.7 mm)
AP6M4Mb M6 x 1.0 M4 x 0.7 0.57" (14.5 mm)

Products List