Cross Recessed outer Hexagonal Head Three Combined Sems Machine Screw,Cr3 Colour zinc Plated

3. Applications:

2) Building . window and door , metal floor, steel structure and building beam etc

3) Heavy industry . Car , air , shipping , machinery and military equipments .

4) Electronic product .computer , calculator , telecontroller and phone etc

Combination screw is a screw with a spring washers with a flat pad by thread rolling, combination of fastening assembly together.And two combination screw is a screw with only one ball pad or only with a flat mat, would you still can only go with a tooth of the assembly,outer hexagonal screws is common used . 

Combination Screw is the biggest difference between screw and ordinary screw, screw combination is combined with other components, such as elastic washer, flat pad, tooth, etc., and screw is installed before rolling teeth commonly, after in the roll teeth washer is not to come out.

Question & Answer 

1. Payment : T/T (30% T/T in advance and balance 70% against copy of B/L)

                       L/C at sight 

2. Lead Time : If have stock , can be packing and ship within 10-15 days ,        

                        If not have stock , usually take 25-30 days to produce one container order .

3. Free Sample : For standard item , we can supply the samples free .  courier cost by the buyer.

                            For nonstandard item , we will quote the mould charge ineed,  but the mould charge can be return if bulk          order released .

4. OEM  : We  Can produce the drawing according to your drawing or samples , also can packing the products as customer's     request with LOGO  and company information on it 

5. How to place a order :

    Send inquiry -------quotation --------Confirm order (price ,lead time , technical detail with drawing and payment ) ---------pay    deposit -------Start to produce after got deposit ---------sample approve (if need) ------------ass produce -----send picture of packing for confirm------arrange shippment ---------send copy of B/L -------------Pay balance payment ----------send the documents for clearance ----------feedback 

6. Anyother question , welcome to contact us anytime .