Home Machine Screws Oval Head Screws Slot 5-40 x 5/16" Oval Head Slotted Machine Screw Steel Black

5-40 x 5/16" Oval Head Slotted Machine Screw Steel Black

Screw
Screw
Part No. MOL0505B rohs Rating:

material Black Zinc Plated Steel
Ship Date 2026-11-17
Head Oval Head
drive Slot   Slot
Head Diameter 0.215-0.237" inch
Head Height 0.116" Ref inch
Thread 5-40
Length 5/16 inch
Unit Price USD$ 0.026 /pcs
Unit Weight 0.634 g
Quantity pcs
Amount USD$ Total Amount USD$
Amount USD$ Total Amount USD$
  
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Item Information

Why Choose MOL0505B?

MOL0505B is a 5-40 Oval Head head Slot drive screw with 5/16 inches length, featuring a Black Zinc Plated Steel finish. Compared to alternative finishes in the same specification such as MOL0505S (SUS304 Stainless Steel), MOL0505Z (Blue Zinc Plated Steel), the Black Zinc Plated Steel of MOL0505B offers a black decorative finish combined with good corrosion resistance, ideal for consumer electronics, automotive interiors, and applications where both appearance and rust prevention matter. The Oval Head head design ensures optimal load distribution across the mating surface, while the Slot drive allows efficient torque transmission during installation. Each MOL0505B screw is manufactured to industry standards, RoHS compliant, and supplied with material test reports (MTR) for full quality traceability.

5-40 x 5/16" Oval Head Slotted Machine Screw Steel Black
MOL0505B This part demension will be same as the drawing indicate below, length tolerance will be ±0.5 .
It is Oval Head with Slot drive, 5-40 Thread and 5/16 inch Length .
material Black Zinc Plated Steel, Finsh is Rohs Black which has good function of anti-corrosion .
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BUY MOL0505B - 5-40 x 5/16 Oval Head Slotted Machine Screw - Black Zinc Steel for Precision Assembly | Superneer today,high quality product and best service will be provided by superneer.Each order will be made shippment on time.
Different Finish :
5-40 x 5/16 inch
5-40 x 5/16 inch
MOL0505S
SUS304 Stainless Steel
5-40 x 5/16 inch
5-40 x 5/16 inch
MOL0505Z
Blue Zinc Plated Steel
5-40 x 5/16 inch
5-40 x 5/16 inch
MOL0505B
Black Zinc Plated Steel
Item Drawing
5-40 x 5/16" Oval Head Slotted Machine Screw Steel Black
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Payment & Trasportation 5-10 days

Payment Method: T/T & Paypal and other payment method

Shipment Method: Air Express , Air Freight, Sea Shippment

How to Order

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 MOL0505B

What is MOL0505B screw?

MOL0505B is a 5-40 Oval Head head Slot drive screw made of Black Zinc Plated Steel, manufactured by Superneer Limited. It has a length of 5/16 inches and is commonly used in electronics, watches, precision instruments, and 3D printers.

What are the specifications of MOL0505B?

The MOL0505B screw features thread size 5-40, length of 5/16 inches, head type Oval Head (head diameter 0.215-0.237 inches), drive type Slot (drive size Slot), and is made of Black Zinc Plated Steel.

What material is the MOL0505B screw made of?

The MOL0505B screw is made of Black Zinc Plated Steel. Superneer provides material test reports (MTR) and RoHS compliance certificates for all products. Black Zinc Plated Steel offers excellent corrosion resistance and mechanical strength.

What is the thread size of MOL0505B?

The MOL0505B screw has a 5-40 thread. This is a UNC (Unified National Coarse) thread with 5-40 specification, widely used in North American applications.

What are MOL0505B screws used for?

MOL0505B Oval Head 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 Oval Head head aesthetics is required.

What is the MOQ and price for MOL0505B?

The minimum order quantity (MOQ) for MOL0505B is 10,000 pieces. The unit price is $0.026 USD for MOQ quantity. Larger quantities receive discounted pricing. Contact [email protected] for custom quotes.

What is the lead time and shipping for MOL0505B?

The lead time for MOL0505B 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 5-40 thread?

The 5-40 thread is approximately equivalent to M3 (approx). When substituting inch screws with metric screws, always verify the actual diameter and pitch compatibility.

What head type does MOL0505B use and why?

The MOL0505B uses a Oval Head head type. Oval 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 MOL0505B (5-40, 5/16 inches), ensure your application requires this specific size.

What is the difference between MOL0505B and similar parts?

MOL0505B uses Black Zinc Plated Steel finish, while alternative variants in the same thread/length specification include MOL0505S (SUS304 Stainless Steel), MOL0505Z (Blue Zinc Plated Steel). The Black Zinc Plated Steel of MOL0505B is specifically selected because it offers a black decorative finish combined with good corrosion resistance, ideal for consumer electronics, automotive interiors, and applications where both appearance and rust prevention matter. This distinction makes MOL0505B the preferred choice when these properties align with your application requirements.

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