Stainless Steel Rounded Head Screws with Washer for Sheet Metal Pan Head Self Tapping SEMS Screws

Products Description

A free-rotating, permanently attached washer distributes holding pressure over a wider area than a flange and remains stationary to prevent scratching the material surface as you tighten the screw. They penetrate 0.025" and thinner sheet metal. Length is measured from the edge of the head. Head height includes the washer.

Black-phosphate and black-oxide steel screws are mildly corrosion resistant in dry environments.

Chrome-plated steel screws have a bright and attractive finish. They're corrosion resistant in wet environments.

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FAQ

Q1: Why choose Runtai?
To provide our customers with first-class services in the supply of high quality screw, bolt, bushing, nut and customized hardware.
12 Point Hex Flange Bolt
Q2: How can I get a sample to check your quality?
After price confirmation, you can require for samples to check our quality.
If you just need a sample we have in our stock, we will provide you sample for free and you afford the freight.
Full Thread Hex Bolts And Nut/Black Oxide Hex Head Screw
Q3: Can you strictly follow the tolerance on the drawing and meet the high precision?
Yes, we can, we can provide high precision parts and make the parts as your drawing.
stainless steel hex bolt and nut and washer
Q4: How long can I expect to get the customized sample?
After you pay the sample charge and send us confirmed files, and the mould is existing in our factory, the samples will be ready in 5-10 working days;
If the mould is not existing, we need to open a new mould, the samples will be ready in 10-15 working days; The samples will be sent to you via and arrive in 3-5 working days. You can use your own express account number or prepay us if you do not have an account.
8.8 grade heavy hex bolt and nut galvanized
Q5: What’s your Delivery Time?
Honestly, it largely depends on the order quantity and the season when you place the order. As usual, 15-30working days will be ok. If you are very urgent, we will try our best to do it.