High Quality!! Best Seller! Round head machine screws

Product Description:

Specifications

Screws standard:- 
DIN 934,985, 439, A563 DH,10S 2H, 
Gr 4, Gr7, B8, B8M, A2,A4, 
SS316L, B8, B8M

Specification:-

Screw standard:-
DIN 934,985, 439, A563 DH,10S 2H, 
Gr 4, Gr7, B8, B8M,A2,A4, 
SS316L, B8, B8M                        

Screw Materials:-
Carbon steel, stainless steel, F436M,
SS304, SS316L, 
SPRING,TAPER, PLATE,SS316
4.6. CARBON STEEL, ASTM 
a36, 8.8, b7, a307, a325, a490,

Diameter : 3.5(#6),3.9(#7),4.2(#8),4.8(#10) 
Length: 1/2",3/4"5/8".1",2",2-1/2"......4"  
Surface: Yellow Zinc, Black, Blue, Nickel, Galvan-coating  
Material: SteelC1022,harden higher resistance for special applications.

Wonderful services:

1).Be promptly to reply each inquiry within 5 hours;

2).Quality controlled in the factory from sample to mass production;

3).Keep on service until the goods arrive to customers;

4).Various payment methods acceptable: Alipaid,Paypal,Western UnionPersonal account,Company account

5).You can contact me anytime (MSN,Skype,E-mail,Telephone,fax) while you have question and demands.