4-40 x 1/4" Button Head Torx Machine Screw SUS304 Stainless Steel
Why Choose MBT0404S?
MBT0404S is a 4-40 Button Head head Torx drive screw with 1/4 inches length, featuring a SUS304 Stainless Steel finish. Compared to alternative finishes in the same specification such as MBT0404Z (Blue Zinc Plated Steel), MBT0404B (Black Zinc Plated Steel), the SUS304 Stainless Steel of MBT0404S 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 Button Head head design ensures optimal load distribution across the mating surface, while the Torx drive allows efficient torque transmission during installation. Each MBT0404S screw is manufactured to industry standards, RoHS compliant, and supplied with material test reports (MTR) for full quality traceability.
Payment Method: T/T & Paypal and other payment method
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 MBT0404S
What is MBT0404S screw?
MBT0404S is a 4-40 Button Head head Torx drive screw made of SUS304 Stainless Steel, manufactured by Superneer Limited. It has a length of 1/4 inches and is commonly used in electronics, watches, precision instruments, and 3D printers.
What are the specifications of MBT0404S?
The MBT0404S screw features thread size 4-40, length of 1/4 inches, head type Button Head (head diameter 0.201-0.213 inches), drive type Torx (drive size T8), and is made of SUS304 Stainless Steel.
What material is the MBT0404S screw made of?
The MBT0404S 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 MBT0404S?
The MBT0404S 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 MBT0404S screws used for?
MBT0404S Button Head 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 Button Head head aesthetics is required.
What is the MOQ and price for MBT0404S?
The minimum order quantity (MOQ) for MBT0404S is 10,000 pieces. The unit price is $0.024 USD for MOQ quantity. Larger quantities receive discounted pricing. Contact [email protected] for custom quotes.
What is the lead time and shipping for MBT0404S?
The lead time for MBT0404S 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 MBT0404S use and why?
The MBT0404S uses a Button Head head type. Button Head 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 MBT0404S (4-40, 1/4 inches), ensure your application requires this specific size.
What is the difference between MBT0404S and similar parts?
MBT0404S uses SUS304 Stainless Steel finish, while alternative variants in the same thread/length specification include MBT0404Z (Blue Zinc Plated Steel), MBT0404B (Black Zinc Plated Steel). The SUS304 Stainless Steel of MBT0404S 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 MBT0404S the preferred choice when these properties align with your application requirements.