Thumb and Wing Screws

Product detail · Updated 10 October 2026

Product and assembly brief

Thumb screws and wing screws combine a hand-gripping head with an externally threaded shank. Identify the head form and actual mating thread before ordering. A round knurled head, a two-wing head and a panel-retained screw are different selections; hand operation alone does not establish clamp force or prevent loosening. Final supply scope follows the selected specification and quotation.

Product forms and reference names

Choice or field	What to identify
High knurled thumb head	Raised round grip head and shoulder; DIN 464:2007-01 is the high-type identity reference.
Low knurled thumb head	Flatter round grip head; DIN 653:2006-08 identifies the low type. Compare finger access and the actual bearing surface.
Rounded wing head	Two gripping wings on a male-thread screw; DIN 316:2016-12 identifies rounded-wing screws. Wing span and sweep clearance are procurement fields.
Supplementary tool drive	Specify a slot or other selected drive explicitly. A historic DIN 465 label is not a blanket current-standard designation.
Reduced-shank retained variant	A separate retention design requires a compatible panel/hole interface. GN 464.2 is a maker-specific example, not a property of every thumb screw.

Thumb screw, wing screw or wing nut?

The screw has an external thread projecting from its grip head. A wing nut has an internal thread and belongs on the nut selection page. Choose the mating tapped hole, insert or nut independently, including thread system, diameter and pitch. Similar gripping shapes do not make male and female parts interchangeable.

Standard identity and historic labels

DIN Media identifies DIN 464:2007-01 for high knurled thumb screws, DIN 653:2006-08 for the low type and DIN 316:2016-12 for rounded-wing screws. DIN 465:1970-12 is withdrawn; retain it only as a historic identification clue and resolve the required edition, drive and geometry for a new order. These references do not establish FastenerBridge compliance or dimensional interchangeability. Normative dimensions and tolerances require the selected controlled specification.

Head access and mating joint

Compare round-head grip diameter and height with wing span and rotating clearance. Specify underhead bearing geometry, thread length datum, shoulder and runout, usable thread and blind-hole depth on the drawing. Ganter's DIN 464 catalogue describes a thread runout at the shoulder; its shape must not be mistaken for fully usable thread to the head. No engagement length, pilot-hole size or tightening torque is prescribed here.

Hand operation is not a locking or retention guarantee

A gripping head permits manual operation, but does not define a repeatable clamp force, vibration resistance or safety qualification. A reduced-shank thumb screw can use a designed panel interface for loss prevention, as the GN 464.2 catalogue illustrates; panel thickness and the retention bore/thread arrangement must match that specific design. A plain thumb or wing head by itself is not captive-panel hardware.

Material, finish and end geometry

Specify steel, stainless steel or another required material and finish rather than inferring them from a silver reference image. A manufacturer's own casting, property class or surface treatment is not a general requirement for this family. If the end contacts another part, identify the actual end form or thrust interface on the drawing; no bearing load, temperature, reuse or corrosion-life guarantee is inferred.

Specification fields

Choice or field	What to identify
Identity	High/low knurled or rounded-wing form; selected standard and edition, maker reference or controlled drawing/revision; supplementary drive if required.
Thread and length	Metric or inch thread designation and pitch, length datum, usable threaded portion, shoulder/runout and end form; mating thread and blind-hole depth.
Head envelope	Knurled head diameter/height or wing span/height, gripping clearance and rotating sweep, underhead bearing face and surrounding-part clearance.
Retention interface	Plain removable or specifically panel-retained; panel thickness, reduced-shank region and retention bore/thread details where required.
Material and documents	Screw material, required properties, finish, inspection and traceability documents; verify any requested conformity against the selected specification.
Order controls	Quantity by variant, samples or drawing approval, packaging, destination and requested timing for quotation confirmation.

Common product questions

Is a wing screw the same as a wing nut?

No. A wing screw has an external threaded shank; a wing nut receives an external thread. Specify the mating component separately.

Does hand tightening guarantee a locking joint?

No. Clamp force, loosening resistance and application qualification require the selected joint design and controls. No generic torque or locking guarantee is stated.

Are all thumb screws captive in a panel?

No. Panel retention requires a separate compatible shank and panel interface. Refer to the existing captive-panel screw family when retention is the primary need.

Can a DIN 465 catalogue label be used as current compliance proof?

No. DIN 465:1970-12 is withdrawn. Resolve the actual drive, geometry and applicable specification for the order; a historic label is only an identification clue.

Product references

References checked 10 October 2026 identify structures, not FastenerBridge stock, compliance or brand affiliation. Final requirements follow the selected specification. No normative dimension, load rating or tightening torque is stated.