Brass Double Ended Hex Socket or Slotted Head Security Set Screws

1. Material

Eu -  Brass CnZn39Pb3 according to EN12164 or EN12165

US -  Brass CA3600 or CA3700 according to ASTM B16 or ASTM B124

 appointed pattern by customers

2. Size

3/8" , 1/2" , 3/4" , 1" , 1 1/4" , 1 1/2" , 2" , 3" , 4" or customized

3. Surface

Yellow brass color

Nickel plated

Chrome plated

4.

Advantages:

♦In China, Very High Quality Pneumatic fittings Manufacturers are about 4 factories, We are one of them.  

♦The most smart and inteligent engineer is in our team. 

♦The most patient and professional sales are in our team.

♦8 years experience in manufacturing and exporting, can help you solve any problems.

♦100% test in water for air pressure, 100% test apperance, 100% test sleeves flexibility.

♦Long lifespan

♦Good price, Fast delivery, Better after-sales service than others.

♦OEM is available.

♦Metric size, Inch size, BSPP, BSP, BSPT PT, R, NPT, M thread are available.

♦Our quality only point to middle and high-end markets. We rejiect low quality products.

♦Nearby Ningbo port, convenient transportation to Ningbo, Shanghai, Hangzhou. 

5.

Machining  process

a. Computer control cutting machine:cut the raw material in to pieces ,and computer control make sure that  The smallest error .

b. Die casting machine: after cut the raw material we put the brass pieces into  Die casting machine. and make the brass into valve body .

c.  We use machine cut the brass pipe or bar  raw material  in to same pieces, after that send the brass parts to production line
 d. CNC control make threads :we use CNC machine make threads of valve . in this step workers must use threads guage check  to check threads  10 times  per hour . 

e. Drill hole:we use drilling machine to make hole on valve rod , after drill the hole we use drill machine make inner threads for valve rod to wedding with valve handle .

f. Digital supply machine transfer the  brass parts  to auto instrument lathe ,  Save more manpower cost.

g. We owe 25 professional auto instrument lathe , can make 50000 pcs nut or scrwe each day .  

h. CNC machine line  , we use this machine to make some  complex construction products or high precision requirements.  

i. Quality inspector, Our  quality inspector  need to check  300 pcs products  each day , usually need to check the thick and threads of products  . only get the certificate of approval  workers can put the goods in to warehouse 

j. Electroplating services , we support electroplating services , if customer needed we can do galvanized,Chrome plated

,Nickel plating  on products 

k. In assembly shop workers put products into nylon bags , that can protect goods  away from the risk of rust. 

l. After that  make carton out side and with label on outside of  carton

6.