17-4 ph is martensitic precipitation hardening stainless steel. 17-4 ph performance characteristic is easy to adjust the strength level, can be adjusted by changes in heat treatment process. Martensite phase transformation and aging treatment of metal forming precipitation hardening phase is the main reinforcement method, 17-4 ph attenuation performance is good, strong corrosion fatigue resistance and water resistance.

1.Size and type: 
Bolt: M6-M64 full thread or half thread
Nut: M3-M64 
Threaded Rod:4-2000mm
Plain washers:M3-M33
And heavy hex bolts and nuts with all sizes.

2. Treatment:cold forging/hot forging

3.Materials option: Stainless Steel C276, 904L, 304, 304L,310S, 316, 316L, 321, 317L, 2507, 2205, 254SMO, AL6XN, 1.4501,1.4529.
Super duplex stainless steel F55, F51,F53  HastelloyB&C, Inconel, Incoloy etc.

4.Standards: GB , DIN, JIS, AISI/ASTM/ANSI/AMSE and BS EN, etc.

5.Packing : Cartons then pallet, or wooden box, or by clients' requirements.

6.Exported countries:United States, Germany, Saudi Arabia, South Korea,etc.