M8 x 25mm Knurled Captive High Thumb Screws (DIN 464) - Thread Locking Steel (A1) Description

The M8 x 25mm Knurled Captive High Thumb Screws (DIN 464) - Thread Locking Steel (A1) has the following features:

• 18mm Head Length (H)
• DIN 464 Manufacturing Standard
• 25mm Length (L)
• 16mm Thread Length (E)
• Stainless Steel (A1) Material
• Stainless Steel (A1) Material Specification
• 6mm Knurled Head Length (K)
• Thread Locking Finish
• 1.25mm Thread Pitch
• Metric Metric or Imperial?
• M8 (8mm) Thread Size
• 30mm Head Diameter (D)
• 9mm Captive Length
• 6.2mm Captive Diameter (C)
• +0/-0.42mm Head Diameter (D) Tolerance
• +0/-0.35mm Head Length (H) Tolerance
• 16mm Shoulder Diameter (SD)
• M8 (8mm) Suitable Captive Washer
• /washers-for-captive-screws/14886-HCW-M8-BZP Suitable Captive Washer Link

Discover more about the Knurled Captive High Thumb Screws - DIN 464 range.

Captive Thumb Screws are a specialised variant of the standard DIN 464 Thumb Screw range, designed with an unthreaded shank below the head. This unthreaded portion is designed for use with one of Accu’s Captive Washers. The large, knurled head of these fasteners also makes them easily operated by hand. Slotted Captive Thumb Screws are a variant of this product, featuring an addition of a slotted drive.

Captive Screws are intended to be easily removed and reinstalled when necessary, the addition of a large knurled head for operation by hand simplifies this process. Captive Thumb Screws are often used for affixing captive panels, which must be retained for safety reasons on many industrial machines.

For Accu's full selection of captive fasteners, please see our Captive Screws category. To find out more about Accu's Captive Screws, visit our What is a Captive Screw? page.

Metric Knurled Captive Thumb Screws

Knurled Captive Thumb Screws are available in metric sizes as standard. Thread sizes range from M3 up to M10, and lengths are available from 12mm up to 30mm.

Custom Manufactured Captive Screws

Accu can custom manufactured captive screws to an exact customer specification. If the product you require is not listed in our standard ranges, please contact us or submit your technical drawing to MADEbyACCU for a quotation.