This browser is no longer supported. Upgrade to Microsoft Edge or switch to a supported browser, like Chrome, Safari, or Firefox, to explore the MW Components website.

We're sorry for the inconvenience.

738S - 1/4-28 UNF2A Steel Knurled Low Profile Head Captive Screw / Assembly

Configurable Knurled Low Profile head Slotted Steel captive screws with 1/4-28 UNF2A threads.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Assembly Configurable
Brand Accurate Screw
Chamfer Length 0.0156 in
Display Name 738S
Drive Type Slotted
End Type Lead Point
Finish None
Head Diameter 0.75 in
Head Height 0.25 in
Knurl Pitch 30 deg
Length L 0.415 in
Material Steel
Max L 3 in
Model Number 738
SKU 738S
Screw Head Type Knurled Low Profile
Shaft Diameter 0.175 in
Shaft Length - Threaded 0.375 in
Slot Depth 0.125 in
Slot Width 0.063 in
Thread Size 1/4-28 UNF2A
Specs (in metric)
Label Value
Assembly Configurable
Brand Accurate Screw
Chamfer Length 0.4 mm
Display Name 738S
Drive Type Slotted
End Type Lead Point
Finish None
Head Diameter 19.05 mm
Head Height 6.35 mm
Knurl Pitch 30 deg
Length L 10.54 mm
Material Steel
Max L 76.2 mm
Model Number 738
SKU 738S
Screw Head Type Knurled Low Profile
Shaft Diameter 4.45 mm
Shaft Length - Threaded 9.53 mm
Slot Depth 3.18 mm
Slot Width 1.6 mm
Thread Size 1/4-28 UNF2A
Introducing the 738S Captive Screws, the ideal solution for secure and convenient fastening applications. Crafted from high-quality steel, these screws are designed to withstand tough conditions while providing reliable performance. The absence of a finish gives them a sleek and industrial look, perfect for a variety of industrial and commercial settings.

The 738S Captive Screws are innovatively engineered with a unique captive design that prevents them from getting lost or misplaced during maintenance or assembly processes. This feature not only saves time but also reduces the risk of foreign object debris (FOD) in critical equipment.

These steel captive screws are versatile and can be used in a wide range of applications such as equipment manufacturing, electronics, aerospace, and more. Their durability and strength make them suitable for environments where vibration or frequent maintenance is a concern.

The precise engineering of the 738S Captive Screws ensures a secure and tight fit, providing peace of mind that your components are held together effectively. Their steel construction offers excellent corrosion resistance, adding to their longevity and reliability.

Whether you require fastening solutions for panel doors, enclosures, or machinery, the 738S Captive Screws are up to the task. With their robust build quality and innovative design, these screws offer a reliable and efficient fastening solution for your industrial needs.

Choose the 738S Captive Screws for a combination of durability, convenience, and performance in your fastening applications. Take the hassle out of traditional screw usage with these reliable and secure captive screws, designed to simplify your assembly processes and ensure optimal results.