Home Machine Screws Round Head Screw Slotted Round Head Bolt 8-32 x 5/16" Round Head Slotted Machine Screw Steel Black

8-32 x 5/16" Round Head Slotted Machine Screw Steel Black

Screw
Screw
Part No. MRL0805B rohs Rating:

material Black Zinc Plated Steel
Ship Date 2026-11-17
Head Round Head
drive Slot   0.045-0.054" width
Head Diameter 0.287-0.309" inch
Head Height 0.107 -0.120 " inch
Thread 8-32
Length 5/16 inch
Unit Price USD$ 0.037 /pcs
Unit Weight 1.205 g
Quantity pcs
Amount USD$ Total Amount USD$
Amount USD$ Total Amount USD$
  
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Item Information

Why Choose MRL0805B?

MRL0805B is a 8-32 Round 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 MRL0805S (SUS304 Stainless Steel), MRL0805Z (Blue Zinc Plated Steel), the Black Zinc Plated Steel of MRL0805B 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 Round Head head design ensures optimal load distribution across the mating surface, while the Slot drive allows efficient torque transmission during installation. Each MRL0805B screw is manufactured to industry standards, RoHS compliant, and supplied with material test reports (MTR) for full quality traceability.

8-32 x 5/16" Round Head Slotted Machine Screw Steel Black
MRL0805B This part demension will be same as the drawing indicate below, length tolerance will be ±0.5 .
It is Round Head with Slot drive, 8-32 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 MRL0805B - 8-32 x 5/16 Round 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 :
8-32 x 5/16 inch
8-32 x 5/16 inch
MRL0805S
SUS304 Stainless Steel
8-32 x 5/16 inch
8-32 x 5/16 inch
MRL0805Z
Blue Zinc Plated Steel
8-32 x 5/16 inch
8-32 x 5/16 inch
MRL0805B
Black Zinc Plated Steel
8-32 x 5/16" Round 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 MRL0805B

What is MRL0805B screw?

MRL0805B is a 8-32 Round 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 MRL0805B?

The MRL0805B screw features thread size 8-32, length of 5/16 inches, head type Round Head (head diameter 0.287-0.309 inches), drive type Slot (drive size 0.045-0.054" width), and is made of Black Zinc Plated Steel.

What material is the MRL0805B screw made of?

The MRL0805B 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 MRL0805B?

The MRL0805B screw has a 8-32 thread. This is a UNC (Unified National Coarse) thread with 8-32 specification, widely used in North American applications.

What are MRL0805B screws used for?

MRL0805B Round 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 Round Head head aesthetics is required.

What is the MOQ and price for MRL0805B?

The minimum order quantity (MOQ) for MRL0805B is 10,000 pieces. The unit price is $0.037 USD for MOQ quantity. Larger quantities receive discounted pricing. Contact [email protected] for custom quotes.

What is the lead time and shipping for MRL0805B?

The lead time for MRL0805B 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 8-32 thread?

The 8-32 thread is approximately equivalent to M4 (approx). When substituting inch screws with metric screws, always verify the actual diameter and pitch compatibility.

What head type does MRL0805B use and why?

The MRL0805B uses a Round Head head type. Round 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 MRL0805B (8-32, 5/16 inches), ensure your application requires this specific size.

What is the difference between MRL0805B and similar parts?

MRL0805B uses Black Zinc Plated Steel finish, while alternative variants in the same thread/length specification include MRL0805S (SUS304 Stainless Steel), MRL0805Z (Blue Zinc Plated Steel). The Black Zinc Plated Steel of MRL0805B 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 MRL0805B the preferred choice when these properties align with your application requirements.

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