Full Dog Point Alloy Steel Socket Set Screws

Full dog point alloy steel socket set screws are headless threaded fasteners designed to accurately locate and secure collars, hubs, gears, pulleys, couplings, knobs, handles, and other shaft-mounted components. The internal hex drive allows installation in confined spaces, while the extended cylindrical full dog point projects beyond the threaded portion to engage a mating hole, groove, or machined recess for repeatable positioning and alignment.

Unlike point styles that rely primarily on contact with the shaft surface, full dog point set screws are commonly selected where the locating feature of the extended dog point is an integral part of the assembly. The cylindrical projection helps position mating components while the threaded section secures the assembly. These fasteners are frequently used in machinery, indexing mechanisms, automation equipment, tooling, fixtures, couplings, conveyor systems, power transmission equipment, maintenance repairs, and OEM manufacturing where accurate positioning is essential.

Manufactured from alloy steel, these socket set screws are intended for demanding industrial mechanical applications. Proper fastener selection should consider thread size, screw length, dog point diameter, dog point length, mating-hole dimensions, installation access, and assembly requirements. Individual product pages provide verified engineering dimensions to assist engineers and purchasing professionals in selecting the appropriate fastener.

Cold Headers supplies full dog point alloy steel socket set screws in a broad range of inch thread sizes and lengths, including uncommon and difficult-to-source configurations. Our catalog is organized to simplify exact-size sourcing while providing consistent engineering information across every product family.

Why Choose Full Dog Point Socket Set Screws?

Extended cylindrical dog point: Designed to engage a mating hole, groove, or recess for repeatable positioning.
Headless construction: Installs flush with or below the surrounding component surface.
Internal hex drive: Allows installation using standard hex keys where external wrench clearance is limited.
Alloy steel construction: Intended for demanding industrial mechanical applications.
Verified engineering dimensions: Product pages provide thread size, screw length, dog point dimensions, and hex socket size where available.

Selecting the Correct Full Dog Point Set Screw

Begin by confirming the required thread size and screw length. Review the dog point diameter, dog point length, mating-hole dimensions, installation clearance, and assembly requirements before selecting a fastener. Full dog point set screws should not be substituted automatically for cup point, knurled cup point, cone point, flat point, oval point, or half dog point styles because each point geometry serves a different mechanical function.

Cold Headers Inc. has supplied specialty industrial socket fasteners since 1962. Our catalog helps engineers, distributors, maintenance teams, and purchasing professionals locate exact sizes, uncommon lengths, and difficult-to-find alloy steel socket set screws without unsupported inventory claims.

Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.

Unit of Measure

Items	4-40 x 1/8 FDSS Alloy-Steel 4-40 x 1/8 Full Dog Point Alloy Steel Socket Set Screw List Price (per 100 pieces) $12.00	4-40 x 3/16 FDSS Alloy-Steel 4-40 x 3/16 Full Dog Point Alloy Steel Socket Set Screw List Price (per 100 pieces) $9.50	4-40 x 1/4 FDSS Alloy-Steel 4-40 x 1/4 Full Dog Point Alloy Steel Socket Set Screw List Price (per 100 pieces) $10.50	4-40 x 5/16 FDSS Alloy-Steel 4-40 x 5/16 Full Dog Point Alloy Steel Socket Set Screw List Price (per 100 pieces) $11.50	4-40 x 3/8 FDSS Alloy-Steel 4-40 x 3/8 Full Dog Point Alloy Steel Socket Set Screw List Price (per 100 pieces) $12.50
Description	N/A 4-40 x 1/8 Full Dog Point Alloy Steel Socket Set Screw is built for assemblies where the full dog point must enter a prepared hole, slot, or groove. The extended cylindrical point is used as a locating element, so the mating component must provide the corresponding seat or slot. Typical applications include shaft collars, small hubs, and indexed adjustment collars; it may also fit control handles, removable knobs, and position-setting hardware where repeatable register is part of the assembly design. Check the mating feature depth and diameter before approving a substitution. For 4-40 x 1/8, review the listed thread and length first because those catalog values control the exact SKU. The reference values for this nominal size list a ~1/16 in. dog point length. Cold Headers supports exact-size sourcing when point style, thread, and length must stay tied to the same item. Technical Highlights Point Style: Full Dog Point Material: Alloy Steel Thread Size: 4-40 Length: 1/8 in. Drive Type: Internal Hex Locating Feature: Extended cylindrical dog point for a prepared hole or slot Dog Point Length (T): ~1/16 in. Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.	N/A 4-40 x 3/16 Full Dog Point Alloy Steel Socket Set Screw gives a drawing-specific full dog set screw option for locating a component from inside a threaded hole. The extended cylindrical point is used as a locating element, so the mating component must provide the corresponding seat or slot. Typical applications include gear hubs, linkage arms, and keyed shaft hardware; it may also fit couplings, collars, and parts that must return to the same position where repeatable register is part of the assembly design. Confirm the thread and length together so the locating point reaches the intended feature. For 4-40 x 3/16, review the listed thread and length first because those catalog values control the exact SKU. The reference values for this nominal size list a ~1/16 in. dog point length. Cold Headers can help buyers keep the full dog point requirement visible during quoting and replacement work. Technical Highlights Point Style: Full Dog Point Material: Alloy Steel Thread Size: 4-40 Length: 3/16 in. Drive Type: Internal Hex Locating Feature: Extended cylindrical dog point for a prepared hole or slot Dog Point Length (T): ~1/16 in. Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.	N/A 4-40 x 1/4 Full Dog Point Alloy Steel Socket Set Screw is selected when the screw point is meant to register in a mating feature rather than bite into a plain shaft. The extended cylindrical point is used as a locating element, so the mating component must provide the corresponding seat or slot. Typical applications include stop collars, sliding mechanisms, and fixture registers; it may also fit gear hubs, linkage arms, and keyed shaft hardware where repeatable register is part of the assembly design. For service work, compare the existing screw, print note, and receiving slot before ordering. For 4-40 x 1/4, review the listed thread and length first because those catalog values control the exact SKU. The reference values for this nominal size list a ~1/16 in. dog point length. Cold Headers is useful when uncommon lengths or point-style details make an ordinary set screw search unreliable. Technical Highlights Point Style: Full Dog Point Material: Alloy Steel Thread Size: 4-40 Length: 1/4 in. Drive Type: Internal Hex Locating Feature: Extended cylindrical dog point for a prepared hole or slot Dog Point Length (T): ~1/16 in. Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.	N/A 4-40 x 5/16 Full Dog Point Alloy Steel Socket Set Screw supports shaft, collar, and linkage layouts that need a longer cylindrical locating point. The extended cylindrical point is used as a locating element, so the mating component must provide the corresponding seat or slot. Typical applications include control handles, removable knobs, and position-setting hardware; it may also fit machine controls, pivot hardware, and stop blocks where repeatable register is part of the assembly design. Keep the receiving hole, available hex access, and marking tolerance aligned with the drawing. For 4-40 x 5/16, review the listed thread and length first because those catalog values control the exact SKU. The reference values for this nominal size list a ~1/16 in. dog point length. Cold Headers helps industrial buyers identify the correct socket set screw by exact size and point geometry. Technical Highlights Point Style: Full Dog Point Material: Alloy Steel Thread Size: 4-40 Length: 5/16 in. Drive Type: Internal Hex Locating Feature: Extended cylindrical dog point for a prepared hole or slot Dog Point Length (T): ~1/16 in. Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.	N/A 4-40 x 3/8 Full Dog Point Alloy Steel Socket Set Screw identifies a headless alloy steel set screw with an internal hex drive and a full dog locating point. The extended cylindrical point is used as a locating element, so the mating component must provide the corresponding seat or slot. Typical applications include automation fixtures, packaging equipment, and conveyor adjustments; it may also fit equipment builds where external head clearance is not available where repeatable register is part of the assembly design. Review the hub, shaft, or fixture detail before replacing it with a cup or flat point style. For 4-40 x 3/8, review the listed thread and length first because those catalog values control the exact SKU. The reference values for this nominal size list a ~1/16 in. dog point length. Cold Headers keeps specialty socket set screw sourcing focused on the actual print callout. Technical Highlights Point Style: Full Dog Point Material: Alloy Steel Thread Size: 4-40 Length: 3/8 in. Drive Type: Internal Hex Locating Feature: Extended cylindrical dog point for a prepared hole or slot Dog Point Length (T): ~1/16 in. Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
Brands	N/A Cold Headers, Inc.
Diameter	N/A 4-40
Length	N/A 1/8 in	N/A 3/16 in	N/A 1/4 in	N/A 5/16 in	N/A 3/8 in
Material	N/A Alloy Steel
Quantity	N/A 100
Package Type	N/A Box
Note	N/A Less Than Package Quantity Specified Plus 25%.