Pneumatic SRN9021 21 Degree Framing Nailer is a professional air framing nailer designed for floor framing, wall framing, window build-up, wall sheathing, roof decking, siding, bridging, mobile home construction and housing construction. It drives 21 degree plastic collated strip nails from 2 inch to 3-1/4 inch / 50mm to 83mm, making it suitable for heavy-duty framing and construction fastening.
The SRN9021 framing nailer features an aluminum body, extruded aluminum magazine, 64–70 nail capacity, tool-free depth adjustment, selectable trigger, rubber grip, hardened claw tip and one-piece piston. With a working pressure of 70–120 psi / 5–8.3 bar, it provides fast nail driving and consistent performance for contractors, woodworking factories, construction teams, tool distributors and OEM buyers.
21 degree pneumatic framing nailer for plastic collated strip nails.
Drives 2 inch to 3-1/4 inch / 50mm to 83mm framing nails.
Compatible with 0.113 inch to 0.131 inch / 2.87mm to 3.33mm nail shank diameters.
64–70 nail magazine capacity supports efficient jobsite fastening.
Tool-free depth adjustment allows flush or countersunk driving in different materials.
Selectable trigger supports different fastening modes for precision or speed.
Extruded aluminum magazine improves durability for professional use.
Rubber grip and balanced body help reduce fatigue during framing work.
Hardened one-piece piston provides strong driving power and long service life.
Hardened claw tip helps reduce slippage on framing lumber.
| Specification | Details |
|---|---|
| Product Name | Pneumatic SRN9021 21 Degree Framing Nailer |
| Model | SRN9021 |
| Tool Type | Air Nailer / Pneumatic Framing Nailer |
| Dimensions | 554mm x 108mm x 340mm / 21-13/16 inch x 4-1/4 inch x 13-3/8 inch |
| Weight | 3.9kg / 8.6 lbs |
| Body Material | Aluminum |
| Operating Pressure | 70–120 psi / 5–8.3 bar |
| Load Capacity | 64–70 nails |
| Nail Type | 21 Degree Plastic Collated Strip Nails |
| Nail Head Diameter | 0.276 inch to 0.283 inch / 7.0mm to 7.2mm |
| Nail Shank Diameter | 0.113 inch to 0.131 inch / 2.87mm to 3.33mm |
| Nail Length | 2 inch to 3-1/4 inch / 50mm to 83mm |
| Nail Shank Type | Screw, Smooth, Ring |
| Main Features | Tool-free depth adjustment, selectable trigger, rubber grip, hardened claw tip, one-piece piston, extruded aluminum magazine |
| Main Applications | Floor framing, wall framing, window build-up, wall sheathing, roof decking, siding, bridging, mobile home construction and housing construction |
The SRN9021 is optimized for professional framing and construction tasks. Contact KYA Fasteners for bulk orders, matching 21 degree plastic collated nails, spare parts, custom packaging and OEM tool supply. Download the SRN9021 instruction manual for setup, operation and maintenance guidance.
| Nail Specification | Compatible Range |
|---|---|
| Collation Angle | 21 degree |
| Collation Type | Plastic collated strip nails |
| Head Type | Full round head framing nails |
| Length | 2 inch to 3-1/4 inch / 50mm to 83mm |
| Shank Diameter | 0.113 inch to 0.131 inch / 2.87mm to 3.33mm |
| Shank Type | Smooth shank, ring shank and screw shank |
| Recommended Use | Framing, sheathing, roof decking, subflooring, siding, crates, pallets and wood construction |
| Feature | User Benefit |
|---|---|
| Tool-Free Depth Adjustment | Allows fast adjustment for flush or countersunk driving without extra tools. |
| Selectable Trigger | Supports controlled placement or faster repetitive fastening depending on jobsite needs. |
| Extruded Aluminum Magazine | Improves durability and helps support stable fastener feeding. |
| Hardened One-Piece Piston | Provides strong driving power for framing lumber and construction materials. |
| Rubber Grip | Improves comfort and control during long framing work. |
| Hardened Claw Tip | Reduces wear and slippage when positioning nails on framing lumber. |
The SRN9021 21 degree framing nailer is suitable for heavy-duty construction and woodworking tasks requiring fast driving, consistent depth and full round head fastening. It is commonly used by framing contractors, house builders, construction teams, pallet manufacturers, crate manufacturers and tool distributors.
Floor and wall framing
Window build-up
Wall sheathing and roof decking
Subflooring and wood structural panels
Mobile home and housing construction
Siding and bridging
Pallets, crates and shipping crate assembly
Wood fencing and general construction fastening
Explore Related Framing Nailers
| Nailer Type | Fastener Type | Buying Note |
|---|---|---|
| 21 Degree Framing Nailer | Plastic collated full round head strip nails. | Common choice for framing and construction where full round head nails are required. |
| 28 Degree Framing Nailer | Usually wire collated strip nails. | Not interchangeable with 21 degree plastic collated nails. |
| 30–34 Degree Framing Nailer | Often paper collated clipped head or offset round head nails. | Different magazine angle and collation type; confirm local code and tool compatibility. |
| Buyer Concern | Recommended Check |
|---|---|
| Nail Compatibility | Confirm 21 degree plastic collated nails, 2 inch to 3-1/4 inch length, 0.113 inch to 0.131 inch diameter and full round head specification. |
| Air Supply | Confirm compressor output, air hose size and working pressure range of 70–120 psi. |
| Depth Control | Use tool-free depth adjustment to set flush or countersunk drive according to lumber density and nail length. |
| Shank Type | Use smooth shank for general framing, ring shank for better holding power and screw shank for dense wood or stronger grip. |
| Maintenance | Check o-rings, seals, bumpers, driver, magazine and lubrication regularly to reduce air leaks and misfires. |
| Bulk Purchase | Confirm tool quantity, spare parts, matching nails, package, lead time, sample testing and after-sales support. |
| No. | Symptom | Possible Problem | Solution |
|---|---|---|---|
| 1.1 | Air leak in cylinder cap when tool is idle | Loose head valve piston seal or o-rings; worn or damaged o-ring or cylinder cap gasket | Check and replace head valve piston set, o-ring or cylinder cap gasket |
| 1.2 | Air leak in trigger area when tool is idle | Damaged o-ring in trigger valve, damaged o-ring in trigger valve stem or dirt in the trigger valve | Check and replace o-ring or clean the trigger valve |
| 1.3 | Air leak in cylinder cap when tool is working | Damaged head valve piston o-rings or damaged seal under cylinder cap | Check and replace o-rings or seal |
| 1.4 | Air leak in nose when tool is working | Worn or damaged bumper, or loose driver piston thread | Check and replace bumper or driver piston unit |
| 1.5 | Air leak in trigger area when tool is working | Worn or damaged trigger valve head, or damaged head valve piston o-rings | Check and replace trigger valve head or head valve piston o-rings |
| 2 | Driver piston unit fails to return to correct position | Driver piston unit not straight, driver guide misassembled, worn nozzle, or tight space between piston o-ring and cylinder | Straighten driver piston unit, verify driver guide and magazine, replace nozzle, check lubrication or replace piston o-ring |
KYA Fasteners supplies pneumatic framing nailers, finish nailers, brad nailers, coil nailers, plastic collated framing nails, wire coil nails, staples and industrial fastening tools for global buyers. For contractors, construction suppliers, tool distributors, hardware wholesalers and OEM buyers, KYA can support tool selection, matching fasteners, spare parts, packaging and export supply.
Factory supply for SRN9021 21 degree pneumatic framing nailer.
Matching 21 degree plastic collated framing nails available.
Suitable for floor framing, wall framing, sheathing, siding, roof decking and housing construction.
Bulk order support for tools, nails, spare parts and packaging.
Export support for international distributors and industrial buyers.
The SRN9021 uses 21 degree plastic collated strip nails from 2 inch to 3-1/4 inch / 50mm to 83mm, with 0.113 inch to 0.131 inch / 2.87mm to 3.33mm shank diameters.
The SRN9021 operates at 70–120 psi / 5–8.3 bar. Adjust the pressure according to nail length, material density and required driving depth.
Yes. It is suitable for siding, wall sheathing, roof decking, subflooring, framing, bridging and housing construction when compatible nails are used.
A 21 degree framing nailer uses 21 degree plastic collated full round head strip nails. The angle and collation type must match the nailer magazine and local project requirements.
The SRN9021 supports screw shank, smooth shank and ring shank nails. Smooth shank is used for general framing, ring shank improves holding power, and screw shank is useful for dense materials.
The SRN9021 magazine holds 64–70 nails, depending on nail size and strip format.
Tool-free depth adjustment lets the user set nails flush or countersunk in different materials without changing compressor pressure or using extra tools.
Disconnect the air supply before maintenance. Check o-rings, seals, bumpers, nozzles, driver piston, magazine and lubrication regularly. Refer to the SRN9021 instruction manual for detailed setup and maintenance guidance.
Yes. KYA can supply the SRN9021 framing nailer and matching 21 degree plastic collated framing nails in smooth, ring and screw shank options.
