Value Collection 1408ESP Machine Screw 1/4-20 Pan Head

Product Description

The VALUE COLLECTION 1408ESP is a 1/4-20 pan head machine screw with a slotted drive, manufactured from steel with a zinc finish. The screw measures 1/2 inch in length under the head and conforms to ASME B18.13a and SAE J82 standards. This fastener is suited for general mechanical assembly and fabrication work where a low-profile pan head and slotted driver engagement are required. The zinc coating provides basic corrosion resistance for light-duty indoor and sheltered applications. Sold in multiples of 100 per order.

This machine screw is appropriate for use in light industrial, mechanical, and general assembly applications across trades including HVAC equipment assembly, electrical panel fabrication, plumbing fixture mounting, and general maintenance work. The 1/4-20 unified coarse thread is one of the most common thread sizes in inch-standard mechanical assemblies, making this screw a standard shop and service stock item. It is intended for use with a pre-tapped or threaded mating surface, or with a nut.

Key Features

• 1/4-20 unified coarse thread for broad compatibility with standard inch-system tapped holes and hardware
• Pan head profile provides a low-profile, wide-bearing surface suitable for through-hole and tapped-hole installations
• Slotted drive accommodates standard flat-blade screwdrivers
• Zinc finish offers basic corrosion resistance for general indoor and sheltered service environments
• Meets ASME B18.13a and SAE J82 fastener standards for dimensional and mechanical consistency
• External tooth washer style provides added holding and anti-loosening performance at the fastener head

Compatibility

Designed as a standard inch-system machine screw for use in any application requiring a 1/4-20 thread, 1/2 inch length under head, pan head profile, and slotted drive in a zinc-finished steel fastener.

Installation Notes

Installation is performed with a standard flat-blade screwdriver sized to the slotted head. Verify that the mating thread or nut matches the 1/4-20 thread specification before installation. Do not over-torque, as this can strip the zinc finish or damage the slotted drive recess. Ensure the fastener is appropriate for the load and environmental conditions of the specific application before use.