M3 x 9 mm Flat Head Undercut Slotted Machine Screw SUS304 Stainless Steel Inox

MFULM309S is a M3 Flat Undercut head Slot drive screw made of SUS304 Stainless Steel, manufactured by Superneer Limited. It has a length of 9 mm and is commonly used in electronics, watches, precision instruments, and 3D printers.

The MFULM309S screw features thread size M3, length of 9 mm, head type Flat Undercut (head diameter 4.85-5.38 mm), drive type Slot (drive size 0.79-0.99mm width), and is made of SUS304 Stainless Steel.

The MFULM309S 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.

The MFULM309S screw has a M3 thread. This is a metric thread with M3 specification, commonly used in international applications following ISO standards.

MFULM309S Flat Undercut head Slot 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 Undercut head aesthetics is required.

The minimum order quantity (MOQ) for MFULM309S is 10,000 pieces. The unit price is $0.041 USD for MOQ quantity. Larger quantities receive discounted pricing. Contact [email protected] for custom quotes.

The lead time for MFULM309S 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.

The M3 thread is approximately equivalent to #6 (approx 6-32). When substituting metric screws with inch screws, always verify the actual diameter and pitch compatibility.

The MFULM309S uses a Flat Undercut head type. Flat Undercut 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.

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 MFULM309S (M3, 9 mm), ensure your application requires this specific size.

MFULM309S uses SUS304 Stainless Steel finish, while alternative variants in the same thread/length specification include MFULM309Z (Blue Zinc Plated Steel), MFULM309B (Black Zinc Plated Steel). The SUS304 Stainless Steel of MFULM309S 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 MFULM309S the preferred choice when these properties align with your application requirements.