19mm Diameter 57mm Thread Length 6-Point 10.9 Grade Lug Bolt B1030
Red, blue, green, black, purple, rainbow(neo), gold,silver,matt black,matt silver
Chrome,black chrome,color electrophoretic,color titanium,matt chrome, etc.
10.9 or 12.9
Carbon steel or alloy steel
OPP Bag,Neutral Box,Color Box,Head Card,Plastic Box or as request
ISO9001, TS16949, BV, SGS, TUV
Good anti-rust performance come from superior electroplating process
Thickness of nickel determines the anti-rust performance, and our thickness of nickel≥28μm, thickness of chrome≥3μm.The finished coating products must do NSS testing every lot every day, please refer the following picture. We promise all black chrome over 200 hours neutral salt spray(NSS) testing, all chrome products over 72 hours NSS testing, all matt chrome products over 200 hours NSS testing,even we can customize coating as your request, so that keep the long term anti-rust performance, make you satisfy. You could check the comparison between our HONISHEN and Other factory.
This is SGS neutral salt and spray test of our products. It doesn’t rust after 120 hours
salt and spray test result from SGS.pdf
Different packing way
We have several kinds of package. The most popular one is blister,20 pcs nuts with one key. Another is blister with box. If you want sell it in Amazon, you could also choose color box, when you open it, there is sponge to protect products. You could print your company name or logo on box. We also have neutral box, you could choose white, black or brown.
During the production process. each product receive strict quality check, then we can send them to our customers. Quality Control includes 4 steps: first check – self check – tour check – finial check
We ask worker do 100% self check.
When order is big, we checked it by automatic thread inspection machine, which is purchased from Taiwan, we could choose full automatic thread check in order to save cost, but the nuts in the vibrating disk is have chance to scratch, so we ask worker put the product by hand. Otherwise, if small order, check products by workers.
After package,each carton will put a QR CODE sticker. When we scan qr code with PDA, we could know material batch,production size, production process, which worker make each process and so on.