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Description
Description
These knurled thumb screws offer a versatile fastening solution for restoring lighting fixtures, lampshades, furniture, industrial machinery, home appliances, electronic devices, and various other applications requiring manual adjustment. Their textured grip design ensures aesthetic appeal and practical functionality across repairs, renovations, and professional maintenance tasks.
What will I get?
This pack includes 20 pieces of M3x10mm knurled thumb screws, crafted from durable carbon steel material. Each screw has a 11mm / 0.43" head diameter and 7mm / 0.28" head thickness, offering a robust clamping force. The thread pitch is 0.5mm / 0.02". The flat head thickness is 2.8mm / 0.11", and the column end diameter is 6mm / 0.24". The knurled surface ensures a non-slip grip.
Are there any advantages?
These screws are made of quality metal with black zinc plated cover, which has higher corrosion resistance and anti-rust effect than ordinary screws, prolonged lifespan, are not easy to damage, and are more solid; Featuring a knurled texture on the head, these screws provide enhanced grip for easy hand-tightening, eliminating the need for tools. The flat head design ensures a flush, secure fit, making them good for applications requiring a sleek appearance.
How to use it?
The shoulder head provides a larger contact surface, which can help you tighten or loosen it more easily. Simply grip the knurled head and rotate by hand to tighten or loosen. The textured surface provides a secure hold, even in tight spaces. Use them to fasten components in appliances, instruments, or DIY projects where quick, tool-free adjustments are needed.
What should I notice?
Please confirm the thread size.
These knurled thumb screws offer a versatile fastening solution for restoring lighting fixtures, lampshades, furniture, industrial machinery, home appliances, electronic devices, and various other applications requiring manual adjustment. Their textured grip design ensures aesthetic appeal and practical functionality across repairs, renovations, and professional maintenance tasks.
What will I get?
This pack includes 20 pieces of M3x10mm knurled thumb screws, crafted from durable carbon steel material. Each screw has a 11mm / 0.43" head diameter and 7mm / 0.28" head thickness, offering a robust clamping force. The thread pitch is 0.5mm / 0.02". The flat head thickness is 2.8mm / 0.11", and the column end diameter is 6mm / 0.24". The knurled surface ensures a non-slip grip.
Are there any advantages?
These screws are made of quality metal with black zinc plated cover, which has higher corrosion resistance and anti-rust effect than ordinary screws, prolonged lifespan, are not easy to damage, and are more solid; Featuring a knurled texture on the head, these screws provide enhanced grip for easy hand-tightening, eliminating the need for tools. The flat head design ensures a flush, secure fit, making them good for applications requiring a sleek appearance.
How to use it?
The shoulder head provides a larger contact surface, which can help you tighten or loosen it more easily. Simply grip the knurled head and rotate by hand to tighten or loosen. The textured surface provides a secure hold, even in tight spaces. Use them to fasten components in appliances, instruments, or DIY projects where quick, tool-free adjustments are needed.
What should I notice?
Please confirm the thread size.
Thank you for choosing Harfington!
We make things easy for you, you will enjoy a 30-day free return (within the US) after receiving your items!
In other regions, we do not provide pre-paid return labels and you are responsible for covering shipping costs to return.
If you are not completely satisfied with your product for any reason, we will gladly sort out a solution for you. Once you want to return or refund the order, please Contact Us and our agents will contact you in 1-2 business days.
The return process
1. Contact us
Contact our Customer Service via email [email protected] or website, prepare the proof of purchase and the reason of return.
For wholesale orders, please contact directly [email protected] for faster service.
2. Return & Refund
If you decide to return an item that is not defective, you’re eligible for a 30-day unconditional return since you’ve received it. Our Customer Service team will send you an address for receiving your return items, it takes 3-5 business days to process your return and issue the refund after our warehouse received the items.
Matters needing attention
All returned items should include the following:
• Original packaging (including original box, plastics foam, bubble wrap, bags, etc.)
• Original intact UPC barcode. Removal of the UPC code voids any possibility of the return request being honored.
• All accessories, including cords, cases, transformers, parts, batteries, assembly tools, etc.
• All manufacturer instruction manuals, warranty cards, and other documents.
*Return Policy Exceptions
1.Return Shipping is free only for the first return per order.
2.If you have already returned item(s) from an order but would like to make additional returns of item(s) in the same order, you can use the Return Label we provided, and $6.99 shipping fee will be deducted from your refund.
3.For orders sent to the US and under $50, Harfington will provide the return label. For orders sent to other conturies or over $50, Harfington will not provide the return label.
4.If our warehouse detect worn, damaged, or missing on the return items, Harfington reserve the rights to cancel the refund.
5.Defective Items or Wrong Items. If you receive an item that is wrong, defective, or broken, within 30 days of the date since you’ve received it, Harfington will exchange a new item to you or 100% refund it.
6.Non-returnable Items. Some of our products(eg. Customized product) are not under the service of 30-day unconditional returns. We will tag these products on the detail page and your orders.
7.Larger Items. Some items require special shipping and handling. Some larger items may require a freight carrier or may exceed the weight limits allowed, if you want to return a larger item, please contact our Customer Service.
8.For non-quality issues (such as personal reason) , customer will be responsible for paying the return shipping fees and any customs fees or duties incurred during the return process.
9.For wholesale orders According to the specific order situation, we provide different solutions. If your wholesale order is not finished production, we will cancel the order and issue a full refund. If your wholesale order has been produced and is being processed, 30%~60% of the order amount will be used as a deposit and will not be refunded. Any questions about order cancelation, please contact us.
If you have any issues with your return or refund, please contact the Customer Service team, we are happy to help!
