A visible fastener does not establish its purpose, adjustment range, or whether users are authorized to alter it.
The answer must come from model-specific instructions
Whether opening resistance can be adjusted is a product-specific question. The reliable basis is an instruction or service document for the exact model and version that explicitly identifies an adjustment, explains its permitted scope, and states who may perform it. Without that authorization, adjustability should remain unconfirmed.
SEWARD’s Knife Care page says to follow instructions for the specific model because opening and locking mechanisms can differ. The SEWARD Terms of Service also tells shoppers to check the exact model’s mechanism and product information instead of assuming that all items share the same construction or function.
Why the screw does not answer the question
A visible screw establishes only that a fastener can be seen. Appearance alone does not reveal what it secures, whether it is intended to move after assembly, or whether changing it would affect alignment, retention, locking behavior, or another part of the mechanism. It also cannot establish an approved adjustment range or a correct procedure.
For the same reason, the presence of a tool-compatible head is not permission to turn it. A fastener may be accessible for assembly or professional servicing without being a user control.
What to do when documentation is silent
Do not publish an adjustment tutorial or recommend altering the mechanism to compensate for a product that does not match the buyer’s needs. Instead, leave the feature unconfirmed and obtain clarification tied to the exact product. If parts are loose or a mechanism seems unreliable, SEWARD’s Knife Care guidance is to stop using the knife and contact the company with the product details and concern.
This distinction keeps selection and maintenance separate: choose based on documented features, and treat mechanical changes as authorized only when the model’s instructions expressly support them.