Stainless steel flange DIFR series

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Product overview
The flanged receptacle provides a permanent mating hole for quick-release ball lock pins (inserted from the flanged end). Designed for applications where the pin cannot protrude below the mating surface, these receptacles are suited for blind-hole use and are mounted by screws, rivets or bolts. Constructed from 300 series stainless steel. Grip Length Reduction is the length of pin occupied inside the receptacle and reduces the usable pin length; account for this when selecting pins.

Product types

• Diamond (DIFR)
• Oblong (OBFR)
• Round (ROFR)
• Rectangular (REFR)

Available part options (table)
Header: ID | SKU | Use With Pin Diameter (in) | Flange Style | Thread | D (in) | L (in) | L1 (in) | W (in) | H (in) | H1 (in) | H2 (in) | H3 (in) | Grip Length Reduction (in)
109706 | DIFR-187 | 3/16 | Diamond | 6-32 | .375 | 1.250 | 1.000 | .625 | .650 | .365 | .060 | .060 | .375
109713 | DIFR-250 | 1/4 | Diamond | 6-32 | .375 | 1.250 | 1.000 | .625 | .650 | .365 | .060 | .060 | .375
109715 | DIFR-312 | 5/16 | Diamond | 6-32 | .469 | 1.250 | 1.000 | .625 | .783 | .485 | .060 | .060 | .500
109716 | DIFR-375 | 3/8 | Diamond | 6-32 | .562 | 1.250 | 1.000 | .625 | .913 | .547 | .060 | .060 | .562
109721 | DIFR-500 | 1/2 | Diamond | 10-32 | .750 | 1.500 | 1.125 | .875 | 1.195 | .728 | .100 | .060 | .750

Notes on table

• Dimensions are given in inches; tolerances are as indicated in the product table header where applicable.
• Grip Length Reduction is the amount of pin length occupied by the receptacle and reduces usable pin length.
• Pins insert from the flanged end; receptacles are suitable for blind-hole use since pins do not protrude below the receptacle.

Technical specifications

• Material: 300 series stainless steel.
• Mounting: flanged mounting using screws, rivets or bolts.
• Intended use: provides mating hole for quick-release ball lock pins; ideal for blind-hole applications.
• Insertion: pins inserted from flanged end.
• Flange styles available: Diamond, Oblong, Round, Rectangular (this page covers Diamond / DIFR series).
• Thread examples (in table): 6-32 or 10-32 depending on size.
• Available part numbers (DIFR series): DIFR-187, DIFR-250, DIFR-312, DIFR-375, DIFR-500 with associated dimensional data above.
• Grip Length Reduction: specified per part (see table) and must be considered when selecting a pin to ensure sufficient usable pin length remains.