Sleek Round Head Bolts

Sleek Round Head Bolts are often used in applications where safety and snagging are concerns, as they protrude minimally from surfaces. Xiaoguo®’s team of experts offers professional advice to help you and your supplier choose the right fasteners.

Model:DIN 603-1981

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Product Description

The Sleek Round Head Bolts made of a duplex stainless steel are commonly used in oil and gas pipelines because they can effectively resist the erosion of oil and gas. Their smooth round heads do not interfere with the use of tools during maintenance.

We ship these bolts using a logistics method specifically designed for pipeline engineering - domestic delivery usually takes 5 to 8 days, and international delivery takes 12 to 15 days. Orders for more than 20,000 bolts can enjoy a 25% discount on shipping fees.

These bolts are packed in explosion-proof and waterproof containers. We will test them to ensure they can withstand high temperatures (up to 300 degrees Celsius) and high pressure. Each batch of products will be inspected by an inspector certified by API, and they will comply with API 5L standards. We also attach the Material Test Report (MTR), which lists the characteristics of each bolt.

Mon	#10	1/4	5/16	3/8	7/16	1/2	5/8	3/4	7/8	1
P	23\|32	20\|28\|32	18\|24\|32	16\|24\|32	14\|20\|28	13\|20\|28	11\|18\|24	10\|16\|20	9\|14\|20	8\|12\|20
ds max	0.199	0.26	0.324	0.388	0.452	0.515	0.642	0.768	0.895	1.022
ds min	0.159	0.213	0.272	0.329	0.385	0.444	0.559	0.678	0.795	0.91
dk max	0.469	0.594	0.719	0.844	0.969	1.094	1.344	1.594	1.844	2.094
dk min	0.436	0.563	0.688	0.782	0.907	1.032	1.219	1.469	1.719	1.969
k max	0.114	0.145	0.176	0.208	0.239	0.27	0.344	0.406	0.459	0.531
k min	0.094	0.125	0.156	0.188	0.219	0.5	0.313	0.375	0.438	0.5
s max	0.199	0.26	0.324	0.388	0.452	0.515	0.642	0.768	0.895	1.022
s min	0.185	0.245	0.307	0.368	0.431	0.492	0.616	0.741	0.865	0.99
k1 max	0.125	0.156	0.187	0.219	0.25	0.281	0.344	0.406	0.469	0.531
k1 min	0.094	0.125	0.156	0.188	0.219	0.25	0.313	0.375	0.438	0.5
r max	0.031	0.031	0.031	0.031	0.031	0.031	0.062	0.062	0.062	0.062

Product Details

The Sleek Round Head Bolts are ideal for use in store fixtures (such as shelves and display stands). They have an attractive appearance and their smooth heads will not scratch the goods.

If you place your order in the morning, we can deliver it on the same day. Local delivery usually takes one day, domestic orders take 2 to 4 days, and international orders take 5 to 7 days. The shipping fee starts at $5, and orders over $1000 are free of charge.

We pack the bolts in flat boxes that are easy to store and provide washers and nuts. Each bolt is inspected to ensure it is free of scratches and can withstand the weight. All bolts comply with ISO 9001 standards and are inspected before shipment. We also offer custom packaging with your company logo and a 30-day return policy.

Customized services

We can produce custom round-headed bolts to fully meet your requirements. Our bolts can be made in lengths up to 500 mm. We can provide either metric or imperial threads, and the nut size can also be changed accordingly. If you need to adapt to application scenarios such as furnaces, you can further select special materials, especially those that can be used in high-temperature environments.

Don't worry, we will cooperate with you to get the design right. In addition, before you confirm your order, we will definitely send you the sample. Whether for prototype production or large-scale production, we will customize the bolts for you according to the same quality standards as standard products, ensuring their performance fully meets your requirements.

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