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Accurate Screw Machine

781B - 4-48 UNF2A Brass Countersunk Round Head Captive Screw / Assembly

Configurable Countersunk Round head Slotted Brass captive screws with 4-48 UNF2A threads.

Download CAD
Unit System
Specs (in standard)
Label Value
Assembly Configurable
Brand Accurate Screw
Display Name 781B
Drive Type Slotted
End Type Standard
Finish None
Head Diameter 0.25 in
Head Height 0.25 in
Length L 0.226 in
Material Brass
Max L 3 in
SKU 781B
Screw Head Type Knurled
Shaft Diameter 0.078 in
Shaft Length - Threaded 0.125 in
Slot Depth 0.0781 in
Slot Width 0.0469 in
Thread Size 4-40
Specs (in metric)
Label Value
Assembly Configurable
Brand Accurate Screw
Display Name 781B
Drive Type Slotted
End Type Standard
Finish None
Head Diameter 6.35 mm
Head Height 6.35 mm
Length L 5.74 mm
Material Brass
Max L 76.2 mm
SKU 781B
Screw Head Type Knurled
Shaft Diameter 1.98 mm
Shaft Length - Threaded 3.18 mm
Slot Depth 1.98 mm
Slot Width 1.19 mm
Thread Size 4-40
Introducing the 781B Captive Screws, a reliable solution for securing components in place with ease and efficiency. These screws, crafted from high-quality brass, boast durability and corrosion resistance, making them ideal for a wide range of applications.

The 781B Captive Screws are designed with precision engineering to ensure a secure fit each time they are fastened. The brass material not only provides strength but also offers a sleek and professional look. These screws are finished with a smooth surface, giving them a polished appearance.

Whether used in electronic enclosures, panel fastening, or other industrial settings, the 781B Captive Screws excel in holding power and longevity. Their captive design prevents loss or misplacement during maintenance or assembly, saving time and effort in the long run.

The absence of a finish on these screws adds to their industrial appeal, maintaining a minimalistic and functional aesthetic. The brass material further enhances their reliability in various environments, including those with exposure to elements like moisture or chemicals.

In conclusion, the 781B Captive Screws in brass offer a blend of strength, durability, and aesthetic appeal. Their innovative design and quality material make them a standout choice for securing components securely in place. Trust the 781B Captive Screws to provide unparalleled performance and peace of mind in your projects.

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