OMC 300643 Screw Nos

( Part Type: Screw ), ( Manufacturer Part Number: 300643 )

Review OMC Screw Nos

The OMC 300643 and 300771 screws are high-quality marine grade fasteners designed for use in various applications, particularly in the marine industry. These screws are known for their superior strength and durability, making them an ideal choice for applications where the fasteners will be subjected to extreme conditions, such as exposure to saltwater, UV rays, and harsh marine environments.

The OMC 300643 screw is a self-tapping, stainless steel screw with a thread size of #8-32 UNC. It measures 1 1/2 inches in length and features a Phillips head. The self-tapping design allows it to thread into various materials, including wood and fiberglass, without the need for pre-drilling. The use of stainless steel ensures that the screws resist corrosion and maintain their strength over an extended period.

The OMC 300771 screw, on the other hand, is a flat head, stainless steel screw with a thread size of #10-24 UNC. It measures 3/4 inch in length and also features a stainless steel construction. The flat head design makes it ideal for applications where a countersunk head is required for a flush finish. Like the OMC 300643 screw, the OMC 300771 screw is designed to resist corrosion and maintain its strength in marine environments.

Both the OMC 300643 and 300771 screws are packaged in economical, reusable plastic tubs that can be easily stored and transported. The tubs can hold up to 1000 screws, making them a convenient and cost-effective solution for large projects.

Overall, the OMC 300643 and 300771 screws are an excellent choice for anyone in need of high-quality, marine grade fasteners. Their superior strength, durability, and resistance to corrosion make them ideal for use in marine applications, as well as other demanding environments where fasteners are subjected to extreme conditions.

The OMC 300643 and 300771 screws are commonly used in marine applications due to their corrosion-resistant properties. Here are some pros and cons of buying these screws:

1. High Corrosion Resistance: These screws are made of 316L stainless steel, which is known for its superior resistance to corrosion in marine environments.

2. Strength and Durability: Stainless steel screws are stronger and more durable than their counterparts made of other materials, making them ideal for heavy-duty applications.

3. Long-Lasting: Due to their resistance to corrosion, these screws have a longer lifespan than other types of screws, reducing the need for frequent replacement.

4. Wide Range of Applications: OMC 300643 and 300771 screws are suitable for various marine applications, including decking, hull repair, and rigging.

1. Cost: Compared to other types of screws, stainless steel screws can be more expensive.

2. Availability: These screws may not be readily available at local hardware stores and may need to be ordered online or from specialty suppliers.

3. Installation: Installing stainless steel screws requires the use of specific tools and techniques to ensure a proper fit and to prevent damage to the threads.

In conclusion, OMC 300643 and 300771 screws offer several advantages, including superior corrosion resistance, strength, and durability. However, they can be more expensive and may require special tools for installation. Considering the long-term benefits and the critical nature of marine applications, it is recommended to invest in these screws for optimal performance and longevity.

part # 300643 prices

• $7.95-$8.87

specifications scowware:

• for makes: Omc
• part type: Screw
• manufacturer part number: 300643

shipping scowware:

• transit: 3-8 Days
• type: Calculated
• service: USPS Ground Advantage, USPS Priority Mail Flat Rate Envelope, UPS Next Day Air, UPS 2nd Day Air
• carrier: USPS, UPS
• cost: $0.00
• class: Standard, Expedited, One-day

offer scowware:

• options: Ship-to-home
• best offers: True
• availability: In Stock
• quantity: 6
• started: March 17, 2026
• sold: 0

returns scowware:

• paid by: Seller
• policy: Returns Accepted
• time: 30 Days

seller scowware:

• rating: 99.9%
• # reviews: 130297

general scowware:

• Parts Accessories > Boat Parts > Deck Cabin Hardware
• condition: New other see details

payments scowware:

• other
• wallet: Apple-pay
• credit card: Diners-club

Omc 300643 Is Similar To:

• Omc 398862 5032-398862-1 Knob And Screw Assembly Nos (48.1% similar) $7.88–$14.02. (January 6th, 2026)
• Omc 384306 90-2077 Thrust Washer Repair Kit Nos (48.6% similar) $6.00–$12.59. (January 7th, 2026)
• Omc 321318 Hood Latch Handle Nos (44.1% similar) $19.99–$23.98. (January 7th, 2026)
• Omc 103960 Washer Nos (45.8% similar) $8.58–$10.74. (January 7th, 2026)
• Omc 308293 Latch Handle Nos (51.9% similar) $8.95–$12.99. (January 7th, 2026)
• Omc 328169 Hex Nut Nos (49% similar) $7.99–$75.00. (January 7th, 2026)
• Omc 305585 11 Inch Bolt Nos (51.9% similar) $5.99–$12.99. (January 10th, 2026)
• Omc 313339 Nut Nos (48.9% similar) $8.99–$14.98. (January 11th, 2026)
• Omc 325792 Allen Screw Nos (60.4% similar) $11.46–$19.99. (January 12th, 2026)
• Omc 908373 New Screw Nos (66.7% similar) $10.12–$14.53. (January 12th, 2026)
• Omc 325525 Lock Spring Retainer Nos (45.2% similar) $6.99–$20.00. (January 15th, 2026)