4-40 x 1/2" Flat Head 82° Torx Machine Screw SUS304 Stainless Steel Inox
Why Choose MF8T0408S?
MF8T0408S is a 4-40 Flat Head 82 degree head Torx drive screw with 1/2 mm length, featuring a SUS304 Stainless Steel finish. Compared to alternative finishes in the same specification such as MF8T0408Z (Blue Zinc Plated Steel), MF8T0408B (Black Zinc Plated Steel), the SUS304 Stainless Steel of MF8T0408S offers superior corrosion resistance for outdoor, marine, and humid environments, excellent hygiene properties for food and medical equipment, and good mechanical strength at low cost relative to exotic alloys. The Flat Head 82 degree head design ensures optimal load distribution across the mating surface, while the Torx drive allows efficient torque transmission during installation. Each MF8T0408S screw is manufactured to industry standards, RoHS compliant, and supplied with material test reports (MTR) for full quality traceability.
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Shipment Method: Air Express , Air Freight, Sea Shippment
1. Order online directly, made payment via Paypal or bank transfer.
2. Superneer arrange production according to drawing,all demensions are within drawing specification.
3. Parts ready, ship to customer.
Frequently Asked Questions about MF8T0408S
What is MF8T0408S screw?
MF8T0408S is a 4-40 Flat Head 82 degree head Torx drive screw made of SUS304 Stainless Steel, manufactured by Superneer Limited. It has a length of 1/2 mm and is commonly used in electronics, watches, precision instruments, and 3D printers.
What are the specifications of MF8T0408S?
The MF8T0408S screw features thread size 4-40, length of 1/2 mm, head type Flat Head 82 degree (head diameter 0.195-0.225 mm), drive type Torx (drive size T8), and is made of SUS304 Stainless Steel.
What material is the MF8T0408S screw made of?
The MF8T0408S screw is made of SUS304 Stainless Steel. Superneer provides material test reports (MTR) and RoHS compliance certificates for all products. SUS304 Stainless Steel offers excellent corrosion resistance and mechanical strength.
What is the thread size of MF8T0408S?
The MF8T0408S screw has a 4-40 thread. This is a UNC (Unified National Coarse) thread with 4-40 specification, widely used in North American applications.
What are MF8T0408S screws used for?
MF8T0408S Flat Head 82 degree head Torx drive screws are used in electronics assembly, PCB mounting, precision instruments, watches, 3D printers, optical devices, medical equipment, and consumer products where reliable fastening with Flat Head 82 degree head aesthetics is required.
What is the MOQ and price for MF8T0408S?
The minimum order quantity (MOQ) for MF8T0408S is 10,000 pieces. The unit price is $0.033 USD for MOQ quantity. Larger quantities receive discounted pricing. Contact [email protected] for custom quotes.
What is the lead time and shipping for MF8T0408S?
The lead time for MF8T0408S is 15-25 days for production. Shipping to USA takes 5-15 days via sea freight, with shipping cost starting from $50 USD. Air freight is available for urgent orders. DDP and FOB terms are both available.
What is the metric equivalent of 4-40 thread?
The 4-40 thread is approximately equivalent to M2.5 to M3 (approx). When substituting inch screws with metric screws, always verify the actual diameter and pitch compatibility.
What head type does MF8T0408S use and why?
The MF8T0408S uses a Flat Head 82 degree head type. Flat Head 82 degree head provides a specific head design optimized for its intended application. This head type is selected based on the specific application requirements for load distribution, aesthetics, and accessibility.
How to choose the right screw size for my application?
To choose the right screw: 1) Determine the required thread size based on the tapped hole or nut; 2) Select the appropriate length based on the material thickness; 3) Choose the head type based on clearance and aesthetics; 4) Select the drive type based on torque requirements; 5) Choose the material based on environmental conditions. For MF8T0408S (4-40, 1/2 mm), ensure your application requires this specific size.
What is the difference between MF8T0408S and similar parts?
MF8T0408S uses SUS304 Stainless Steel finish, while alternative variants in the same thread/length specification include MF8T0408Z (Blue Zinc Plated Steel), MF8T0408B (Black Zinc Plated Steel). The SUS304 Stainless Steel of MF8T0408S is specifically selected because it offers superior corrosion resistance for outdoor, marine, and humid environments, excellent hygiene properties for food and medical equipment, and good mechanical strength at low cost relative to exotic alloys. This distinction makes MF8T0408S the preferred choice when these properties align with your application requirements.