Specification:

 Hex washer head self drilling screws
1.Material:Carbon Steel
2.Size:4.2*13-5.5*60
3.Surface:Zinc plated
4.Sharp Nail

Baking finish self drilling roofing screws

Head: PAN, COUNTERSUNK, WAFER, HEXWASHER, PANFRAMING, BUGLE   

Drive:COMBINATION, PHILIPS, POZI, SLOTTED

Thread:COARSE,FINE,WING TEKS

Diameter: 3.5mm/3.9mm/4.2mm/ 4.8mm/ 5.5mm/ 6.3mm

Length: 3/8''-5''

Material: C1022
Surface treatment: black or grey phosphate, zinc plated

Packing: 25kg/ctn or small cartons as customer’s required. 

If any appeals to you,pls free to message us,we will reply you asap.Thanks!

·         size:  
4.2*13  
4.2*16  
4.2*19  
4.2*22  
4.2*25  
4.2*32  
4.2*38  
4,8*13  
4,8*16  
4,8*19  
4,8*20  
4,8*22  
4,8*25  
4,8*30  
4,8*32  
4,8*35  
4,8*32  
4,8*40  
4,8*45  
4,8*50  
4,8*60  
4,8*70  
4,8*80  
5,5*19  
5,5*25  
5,5*30  
5,5*32  
5,5*35  
5,5*38  
5,5*40  
5,5*45  
5,5*50  
5,5*51  
5,5*55  
5,5*60