Step Bolt for Tower

SPECIFICATION OF TOWER STEP BOLT 1) The tower step bolt is used for electrical tower poles .which is made by hot forged alloy steel ASTM A394 type D with heat treatment hardness HRC26 or HRB80-100, step bolt must hold 5000 lbs static test load at the loop side ,keep 2 minutes without distortion...
Product description

SPECIFICATION OF TOWER STEP BOLT


1) The tower step bolt is used for electrical tower poles .which is made by hot forged alloy steel ASTM A394 type D 

with heat treatment hardness HRC26 or HRB80-100,step bolt must hold 5000 lbs static test load at the loop side ,keep 2 minutes without distortion

2) Charpy test is required ,-20 degree with impact strength 27J,as per ASTMA570

3) the step bolt is loop,washer ,nut fixed together 

4) The sizes are 5/8"-11UNC and 3/4"-10UNC

5) Part number of 5/8 is PN3058 and 3/4 is P/N 3075 or P/N 490130

6)part should be free of deburrs ,no defect of forging ,no crack line ,folds ,or rust 


7)Packing:25 pcs per carton box

with marking printed on the box 


 Pictures Show微信图片_20171129133907.jpg


 Package:


微信图片_20171129133913.jpgP/N :490130 Desc: 3/4 step bolt w/nut & washer assembled HDG

QTY:25 pcs  made in China

 微信图片_20171129133855.jpg微信图片_20171129133920.jpgHot forged Production Line :630 TONS OF PUNCHING MACHINE ,400 TONS OF PUNCHING MACHINE


and testing machines: HARDNESS TESTER, LOAD TESTER,IMPACT TESTER 
test machine.jpg


SHOULD YOU INTERESTED ,CALL ME OR EMAIL ME

email: amandaxue@chinarigging.net 

Whatsapp: +86 131 8897 8757

Amanda 

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