DIN968 Cross Recessed Pan Head Tapping Screws with Collar
DIN 968 Cross Recessed Pan Head Tapping Screws with Collar are intended for fastening components where the screw forms or engages its own mating thread in a suitable pilot hole. Available in sizes from ST2.9 to ST6.3, they cover common fastening requirements for sheet metal, plastics, thin metal components, and light equipment assemblies where using a separate nut or pre-tapped hole is not necessary.
The pan head with an integrated collar provides a broader bearing area around the fastening point, helping distribute the clamping load without requiring a separate loose washer in suitable applications. The cross recess offers a practical driving interface for both manual and powered tools, which is useful when multiple screws need to be installed during equipment or component assembly.
Specification:
DIN 968 tapping screws are specified primarily by nominal size, screw length, thread configuration, material, and surface treatment. The available range of ST2.9 to ST6.3 covers common self-tapping requirements for thin metal, plastics, sheet-metal components, and light equipment assemblies. The screw length should be selected according to the thickness of the material and the required engagement depth.
Material and surface treatment can be selected according to the application environment. Carbon steel is commonly used for general-purpose fastening and can be supplied with zinc plating or other corrosion-protection finishes. Stainless steel versions can be supplied in grades such as A2 or A4, with passivation available to maintain the corrosion-resistant surface. The required pilot-hole size should be established according to the workpiece material and thickness to ensure proper thread formation and installation torque.
| Item | Specification |
|---|---|
| Standard | DIN968 |
| Product Type | Pan Head Tapping Screw with Collar |
| Head Style | Pan Head with Collar |
| Drive Type | Cross Recess/Phillips |
| Thread Type | Tapping Thread |
| Thread Diameter | ST2.9-ST6.3 |
| Material | Carbon Steel, Stainless Steel |
| Surface Treatment | Bright Pickling,Zinc Plated,Passivation |
| Pilot Hole | Selected according to Workpiece Material and Screw Size |
Dimension Chart of DIN968 Cross Recessed Pan Head Tapping Screws with Collar:
DIN 968 Cross Recessed Pan Head Tapping Screws with Collar feature a pan head design, cross recess drive, and an integrated collar under the head. The dimension chart mainly covers important parameters such as thread size, pitch, head diameter, head height, collar diameter, and screw length, helping customers select the suitable size for different fastening applications. The collar increases the bearing surface under the head, providing improved load distribution and more stable fastening performance.
| Thread Size | ST2.9 | ST3.5 | ST4.2 | ST4.8 | (ST5.5) | ST6.3 | ||
| P | Pitch | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 | |
| a | max | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 | |
| dk | max=nominal size | 7.5 | 9 | 10 | 11.5 | 13 | 14.5 | |
| min | 6.92 | 8.42 | 9.42 | 10.8 | 12.3 | 13.8 | ||
| k | max=nominal size | 2.35 | 2.6 | 3.05 | 3.55 | 3.8 | 4.55 | |
| min | 2.1 | 2.35 | 2.75 | 3.25 | 3.5 | 4.25 | ||
| c | max | 0.8 | 0.9 | 1.1 | 1.35 | 1.6 | 1.8 | |
| min | 0.6 | 0.7 | 0.9 | 1.05 | 1.2 | 1.4 | ||
| r | min | 0.1 | 0.1 | 0.2 | 0.2 | 0.25 | 0.25 | |
| R | ≈ | 3.8 | 4.6 | 5.8 | 6.6 | 7.8 | 8.2 | |
| Socket No. | 1 | 2 | 2 | 2 | 3 | 3 | ||
| M1 | From H | Ref. | 3 | 4.2 | 4.6 | 5 | 6.5 | 7.1 |
| Penetration depth | From H | min | 1.35 | 1.4 | 1.8 | 2.26 | 2.49 | 3 |
| max | 1.8 | 2.03 | 2.46 | 2.87 | 3.15 | 3.66 | ||
| M2 | From Z | Ref. | 2.9 | 3.9 | 4.3 | 4.7 | 6.2 | 6.7 |
| Penetration depth | From Z | min | 1.58 | 1.47 | 1.88 | 2.28 | 2.51 | 3.02 |
| max | 1.83 | 1.93 | 2.34 | 2.74 | 2.97 | 3.48 | ||
| y | Ref. | Type C | 2.6 | 3.2 | 3.7 | 4.3 | 5 | 6 |
| Type F | 2.1 | 2.5 | 2.8 | 3.2 | 3.6 | 3.6 | ||
| Type R | / | 2.7 | 3.2 | 3.6 | 4.3 | 5 | ||
- RELATED SCREWS LISTS:
- Stainless Steel DIN7976 Hexagon Head Tapping Screws
- Stainless Steel DIN7982 Cross Recessed Countersunk Head Tapping Screws
- Stainless Steel DIN7983 Cross Recessed Raised Countersunk Head Tapping Screws
- Stainless Steel DIN7985 Cross Recessed Raised Cheese Head Screws
- DIN7964E Stainless Steel Socket Head Cap Captive Screw
- Stainless Steel DIN964 Slotted Raised Countersunk Head Screws
- Stainless Steel DIN966 Cross Recessed Raised Countersunk Head Screws
- Stainless Steel DIN967 Cross Recessed Pan Head Screws with Collar
- GB830 Stainless Steel Slotted Cheese Head Screws with Shoulder
- Stainless Steel GB831 Slotted Shoulder Screws
- Stainless Steel GB834 Knurled Thumb Screws
- Stainless Steel GB835 Knurled Screws
- Stainless Steel GB836Knurled Screws with Small Head
- Stainless Steel GB837 Slotted Pan Head Screws with Waisted Shank
- Stainless Steel GB839 Knurled Thumb Captive Screws with Waisted Shank
- Nickel Plated Smooth Shank Single Shoulder Shelf Support Screw
- Nickel Plated Furniture Shelf Peg with Matching Knurled Nut
Application of DIN968 Cross Recessed Pan Head Tapping Screws with Collar:
Sheet Metal and Thin-Wall Components
DIN 968 is particularly suitable for sheet-metal assemblies where creating a separate internal thread is unnecessary or impractical. The tapping thread engages directly with a suitable pilot hole, making the screw useful for electrical enclosures, control panels, equipment covers, machine guards, brackets, and fabricated sheet-metal housings. The integrated collar provides a defined bearing area beneath the pan head, helping distribute the clamping force around the fastening point.
Plastic Housings and Lightweight Components
The ST2.9–ST6.3 range covers common fastening requirements for plastic housings and other lightweight components. DIN 968 can be used to secure covers, molded housings, appliance parts, electronic enclosures, cable-management components, and similar assemblies where the workpiece can provide sufficient thread engagement. For plastic applications, the screw diameter, pilot-hole size, installation torque, and material thickness should be selected carefully to avoid damaging the mating material.
Electrical, Appliance and Equipment Assembly
The compact pan head with collar makes DIN 968 suitable for attaching panels, covers, brackets, and internal components in electrical equipment, appliances, ventilation units, light machinery, and general industrial products. The cross recess also provides a convenient driving interface for production assembly. Zinc-plated carbon steel is suitable for many general indoor applications, while stainless steel can be selected for equipment exposed to moisture or corrosive conditions.